Top 10 Roofers in La Vista, NE

Porch Pro Headshot White Castle Roofing
Roofers
Serves La Vista, Nebraska
(506)
White Castle Roofing is a family-owned and operated business. We have offices in Omaha, Lincoln, and Grand Island, Nebraska, and have been invested in building the Good Life since 1985. We offer residential and commercial roofing services, gutters, soffit, and fascia. We work hard at our craft to e...Read more about White Castle Roofing
White Castle Roofing is a family-owned and operated business. We have offices in Omaha, Lincoln, and Grand Island, Nebraska, and have been invested in building the Good Life since 1985. We offer residential and commercial roofing services, gutters, soffit, and fascia. We work hard at our craft to e...Read more about White Castle Roofing
Porch Pro Headshot Quality Home Exteriors, LLC
Roofers
Serves La Vista, Nebraska
(229)
"Quality Home Exteriors did a wonderful job installing 4 new windows in my living room and bedroom. I used to cover these windows with plastic every year to keep the cold out but this year I don't have to. They helped me with financing also. Thanks for all your help. I would recommend this comp...Read more about Quality Home Exteriors, LLC
"Quality Home Exteriors did a wonderful job installing 4 new windows in my living room and bedroom. I used to cover these windows with plastic every year to keep the cold out but this year I don't have to. They helped me with financing also. Thanks for all your help. I would recommend this comp...Read more about Quality Home Exteriors, LLC
Porch Pro Headshot Nathan James Construction Inc.
Roofers
Serves La Vista, Nebraska
(195)
Nathan James Construction Inc. is here for all your roofing & gutter needs! We only work with the best quality materials, and we're ventilation experts. More than that, you'll deal with the company owner the whole project duration. You will not be handed off to another project manager or salesm...Read more about Nathan James Construction Inc.
Nathan James Construction Inc. is here for all your roofing & gutter needs! We only work with the best quality materials, and we're ventilation experts. More than that, you'll deal with the company owner the whole project duration. You will not be handed off to another project manager or salesm...Read more about Nathan James Construction Inc.
Porch Pro Headshot Neumann, LLC
Roofers
Serves La Vista, Nebraska
(103)
"Neumann LLC is an excellent company that strives to fully satisfy. This was the only company that truly listened to my desires and made sure to explain possible options and limitations that could lie ahead. Communication is very important to me. Neumann LLC has exceeded my expectations with regards...Read more about Neumann, LLC
"Neumann LLC is an excellent company that strives to fully satisfy. This was the only company that truly listened to my desires and made sure to explain possible options and limitations that could lie ahead. Communication is very important to me. Neumann LLC has exceeded my expectations with regards...Read more about Neumann, LLC
Porch Pro Headshot Weathershield Roofing LLC
Roofers
Serves La Vista, Nebraska
(54)
Weathershield Roofing has one core philosophy - TREAT OUR CUSTOMERS RIGHT! Our founders have over 50 years of industry experience. Our desire is to keep things as simple as possible, our overhead as low as possible and passing that savings on to our customers. Our pledge is to provide nothing but 5 ...Read more about Weathershield Roofing LLC
Weathershield Roofing has one core philosophy - TREAT OUR CUSTOMERS RIGHT! Our founders have over 50 years of industry experience. Our desire is to keep things as simple as possible, our overhead as low as possible and passing that savings on to our customers. Our pledge is to provide nothing but 5 ...Read more about Weathershield Roofing LLC
Porch Pro Headshot D & M Roofing
Roofers
Serves La Vista, Nebraska
(38)
"Had damage from one of our last hailstorms. Talked to Eric and the guys at D&M with thoughts on what we wanted to do and they took it from there. Great workmanship, kept me updated and informed ever step of the way. Thought so much of them, that I reached back out to them to build me a new por...Read more about D & M Roofing
"Had damage from one of our last hailstorms. Talked to Eric and the guys at D&M with thoughts on what we wanted to do and they took it from there. Great workmanship, kept me updated and informed ever step of the way. Thought so much of them, that I reached back out to them to build me a new por...Read more about D & M Roofing
Porch Pro Headshot GUT-R-DONE
Roofers
Serves La Vista, Nebraska
(94)
Hello and welcome to our page GUT-R-DONE! My name is Jason T. McClain (Owner/President) and I have been in the gutter and siding industry for 16+ years and with experience comes quality. GUT-R-DONE has always been an Omaha, NE based company and proud to be a Husker! GO HUSKERS!! This page was design...Read more about GUT-R-DONE
Hello and welcome to our page GUT-R-DONE! My name is Jason T. McClain (Owner/President) and I have been in the gutter and siding industry for 16+ years and with experience comes quality. GUT-R-DONE has always been an Omaha, NE based company and proud to be a Husker! GO HUSKERS!! This page was design...Read more about GUT-R-DONE
Porch Pro Headshot Total Construction Services, Inc.
Roofers
Serves La Vista, Nebraska
(89)
remodeling/restoration and roofing contractor who actively engages in insurance restoration services including; fire restoration,water damage restoration,hail and wind damage, Full service design and build remodeling.We are curently vetted with 32 national insurance carriers as a preferred service g...Read more about Total Construction Services, Inc.
remodeling/restoration and roofing contractor who actively engages in insurance restoration services including; fire restoration,water damage restoration,hail and wind damage, Full service design and build remodeling.We are curently vetted with 32 national insurance carriers as a preferred service g...Read more about Total Construction Services, Inc.
Porch Pro Headshot Oak Ridge Construction
Roofers
Serves La Vista, Nebraska
(31)
Oak Ridge Construction is a customer focused, integrity driven exterior remodeling company headquartered in the Omaha/Council Bluffs area; with service in Nebraska, Iowa, Missouri, Minnesota, and Colorado territories. The local project managers will handle all of your roofing and exterior needs. We...Read more about Oak Ridge Construction
Oak Ridge Construction is a customer focused, integrity driven exterior remodeling company headquartered in the Omaha/Council Bluffs area; with service in Nebraska, Iowa, Missouri, Minnesota, and Colorado territories. The local project managers will handle all of your roofing and exterior needs. We...Read more about Oak Ridge Construction
Porch Pro Headshot HomeWise Roofing & Exteriors
Roofers
Serves La Vista, Nebraska
(63)
Beautify and protect your home with exterior Roofing, Siding and Window solutions that enhance values. Locally owned, our contracting experience, knowledge of the Midwest housing environment, and quality exterior products provide you the peace of mind to know it has been done right. The local owner...Read more about HomeWise Roofing & Exteriors
Beautify and protect your home with exterior Roofing, Siding and Window solutions that enhance values. Locally owned, our contracting experience, knowledge of the Midwest housing environment, and quality exterior products provide you the peace of mind to know it has been done right. The local owner...Read more about HomeWise Roofing & Exteriors

Frequently asked questions about roofers

In most cases, you can install metal roofing over shingles. There are some exceptions to this, largely depending on how damaged the roof is. Your roofer will ensure that your home can handle a metal roof structurally and that any issues present won’t be exacerbated. Metal is very strong, but also very light compared to other roofing options, such as asphalt. It can be installed directly overtop the existing shingles, meaning you’re going to save a lot of money leaving them in place. Because metal is light, it won’t significantly increase the load for your home to bear. These roofs last a long time, they reflect heat rather than absorb it, and can withstand whatever the weather throws at them.

When it comes to installation, a quick “roofers near me” search can find you a professional. The basic idea is that you are screwing the metal over top of your existing shingles. Begin with getting a precise measurement of the surface you’re covering. Valleys, dormers, and chimneys will affect how much metal you need. You’ll start with laying roofing felt over the entire roof. You want your felt to be straight and square. Some people use wood strips to assist them. Any seams where water can get into will require flashing. From here, put the panels in place. Keep them straight and symmetrical, and apply this to the screws as well. You’re going to have to cut the valleys by hand, so be precise in your measurements.

Use rubber or foam closure strips for any overlaps. Get some that match the shape and color of your roof. These prevent water damage. You also have the option of attaching rubber strips for plumbing vents. Once finished, attach the ridge cap. This gives the roof closure and prevents leaking. You can also use a mesh to create a ridge vent that allows airflow.

There are a number of options you can use when it comes to roof installation.

Shingles (asphalt, fiberglass, and composite) – Asphalt is the most common roofing you’ll see on modern homes. It’s relatively cheap compared to other options and can last up to 30 years. They come in a variety of color options, which are prone to fading over years of sun exposure. You can opt for architectural shingles, which are thicker and more weather resistant. You can also do three-tab shingles, which are quicker to install but are prone to wind damage.

Metal – This style of roofing has been around for longer than most people realize, and is gaining popularity. Zinc and aluminum are cheap, beautiful, and require very little maintenance. Metal roofing is highly durable and will last a long time. Improper installation will cause problems, and you may need soundproofing for the noise it can generate in a storm.

Wood – Wooden roofing can make for a cozy-looking home, and it lasts longer than shingles. While wood is beautiful, it comes with a higher maintenance cost, especially in areas prone to fire (where you’d need to specially treat the roof). Wood is best used in dry climates, as water, mildew, and mold are a problem for wood.

Clay – Clay may last for an entire lifetime and is extremely fire and wind-resistant. It’s been used for over 5000 years around the world and is still being used today. Clay doesn’t have many color options, and it can be heavy. It also may require specialized labor to install. It's great at regulating the temperature within a home.

Slate – Slate is a material that will last. It may not need replacing for nearly 200 years, is completely fireproof, and withstands winds and temperature extremes. Slate is expensive and heavy, much like clay, and may require extra structural support. Unlike clay, it has a wider variety of color options.

TPO stands for Thermoplastic Polyolefin. It’s a mostly recycled rubber material sold in rolls, which are held together by seams that stick due to the heat. TPO comes in rolls but is priced like any other roofing material. It is best suited for flat surfaces, which it was designed for. Homes with pitched roofs will want to avoid TPO. It's not designed to be attractive and must be installed in dry conditions, which is why it’s generally seen among commercial buildings. The quality of material in TPO can vary greatly between manufacturers, which leads to wide variations in pricing.

TPO has many good qualities as well. It’s a reflective material, which means you’ll save money on cooling and energy usage. It’s very simple to install, lightweight, and requires little maintenance. Since it’s made from recycled materials, this roofing also lowers your eco-footprint. This doesn’t quite paint the whole picture, as the materials needed to install TPO can add up fast. You’ll need insulation between your home and the TPO, which helps regulate heat. Depending on the thickness, this cost can be as much as the TPO itself. You’ll also need to add flashing to the seams and corners. Flashing prevents water leakage, and ranges wildly depending on your roof, such as whether you have peaks, dormers, or a chimney.

To attach TPO to your roof, you have three main options available to you. You can use glue to fasten the rubber to the underlayment, which is known as an attached roof. A fastened roof uses screws to hold itself down, and a ballasted roof uses rocks or pavers.

On average, your roof will cost roughly $8,600 to replace. The price varies based on the size of the home and what materials you want to use. When you receive a quote for a roof, you may be quoted based on square foot, or by square. They are different, with a square making up 100 square feet. Either way, the cost for labor is, on average, between $1.50 to $3.00 per square foot, or $150 to $300 per square.

Another factor that can raise the cost of a roof replacement is whether there is damage. If the roof is rotting, it’s not safe for a roofer to stand on it. Roofing companies will need to bring in equipment and fix the rotting, which will increase your costs. If you’re requiring the roof to be replaced under extreme weather conditions, this may alter your cost. If you have multiple layers of shingles, it may take more time (and therefore money) to remove them.

Material can account for 40% of the roofing cost. Asphalt can be as high as $5.50 per square foot. Metal, on the high side, can be $14, and clay or slate can go as high as $20 per square foot. Wood can go as high as $7 per square foot, but requires a lot of maintenance. Most people tend to go with asphalt, as it tends to last up to 30 years, and has a variety of colors to choose from.

If you’re going to replace the roof, and it's not an emergency, fall is the best season for the job. Autumn is a relatively dry season, and the weather is cooler.

There are benefits and disadvantages to any type of roofing. Asphalt is a common roofing material that comes in shingles. They’re an inexpensive option and straightforward to install. Metal comes in long sheets. It can be expensive to make and to install, but its seamless design is among the best available for roofing options. Metal is currently gaining in popularity, but that trend may not last. Rather, consider how it holds up in comparison.

Metal roofing is durable, and can withstand heat, water, wind, and hail. Once installed, it’s also quite easy to maintain. Because of its reflective nature, you can save energy costs in the summer, as metal will repel heat. Metal costs more to create and install, plus it’s heavier. If your home needs stability improvements to handle it, that won’t be cheap.

Asphalt is cheap to make, cheap to buy, and cheap to install. It’s relatively durable, though its longevity is only 50 years compared to metal’s 70 years or more. Asphalt has low snow retention, and extreme weather can harm it. It offers nothing in terms of energy savings.

If shingles need replacing, it’s a relatively straightforward job. You slide a new shingle in place and nail it down. Of course, anything on the roof is a safety hazard, so don’t take the job lightly. Metal roofs don’t need a lot of maintenance, but when they do, it’s a pain. If you use improper materials, it can cause the metal to corrode and create a bigger problem.

Both materials make for solid roofs. Asphalt has a few drawbacks, but is also the best for a tight budget. Metal costs more, but you gain durability, savings, and longer replacement costs. If you have the budget, you can decide if it's worth it.

Metal roofing is sold in squares, which are comprised of 100 square feet, and may also be called metal sheets. There are a variety of different metals you can choose from.

  • Steel roofs can come in two different types. The difference between the two types is what metal the steel is coated with. Galvanized is zinc, whereas galvalume is aluminum. Galvalume is cheaper and can go as high as $200 per sheet, whereas galvanized can go as high as $350.
  • Stainless steel is more durable and has a beautiful sheen to it. It’s considered a premium metal and is not a cheap option. It can run anywhere between $400 to $1,200 per sheet.
  • Tin roofs are a bit of a misnomer, as the actual material that comprises these roofs is called terne. This is steel coated with tin and can cost between $300 to $1,500 per square.
  • Aluminum is a cheaper option and can be recycled after you replace it. Compared to other options, it is a cheaper option at $600 per sheet on the high end.
  • Copper fades to a soft green over time and is highly durable. It can cost between $800 to $1,500 per sheet. It’s highly rust resistant and will have a long life.
  • Zinc is an attractive option that is available in both shingle style or standing steam to suit your aesthetic. Zinc usually runs between $600 to $1,000.

To install, metal roofing costs $3000 on average, though style, pitch, and coating can increase those costs. As always, size can play a factor as well. All the best roofing companies can break down your options for you and help you decide what the best option is for your specific circumstances.

Recent reviews for La Vista Roofing Contractors

50666

I am a house flipper in omaha and have used quite a few roofing companies over the years. One of the most difficult parts of my job is finding reasonably priced, high quality, on time contractors. D & M checks all those boxes. I wouldnt think to call any...

- Jason Taylor
50682

D&M Roofing replaced my Hail Damaged roof in 2013. Eric was professional and courteous during the sales and product discussions. His roofing crew was efficient, timely, and incredibly detailed. I have recommended them to family and friends several time...

- Walter Bell
49909

Had siding installed on my house and a new garage door. Very pleased working with Eric, nothing but good things to say and will go to him first with any other house projects. Very honest, reliable and trustworthy. Would recommend to everyone.

- Catie Williams
49827

Eric went above and beyond for us. Highly recommend D&M Roofing!

- Troy Martin
49831

Eric and his team are absolutely wonderful! They're very knowledgeable about the business, honest & get the job done quickly. Great guys, great company and I highly recommend him to anyone I know!

- Megan Owens
87929

Our experience with Quality Home Exteriors has been, at times, incredibly frustrating. We had new siding, door wraps, and gutters installed, and throughout the whole process there has been issues with communication about the project. There were multiple ...

- Chelsie Temmen
85008

Melissa Trueblood I enjoyed working with the company. The representative was knowledgeable and not pushy. The new gutters look great. Work was done quick and the workers cleaned up afterwards. I would recommend to neighbors and friends.

138320

My husband and I had been talking about looking into getting new windows. Then someone showed up at our door from QHI. After giving them our information, we met with the saleman. He was very nice and respectful, as was they woman in the office. It too...

- Tisi Barberi
75902

Quality home exteriors did an amazing job putting in my windows period from start to finish they were very professional and fixed the problems that we had quickly. I would definitely recommend this company.

- Jennifer Olsen
77393

We can attest to a very positive experience with Quality Home Exteriors. They provided the exact, precise services we contracted for, with an excellent outcome. All of the work was completed on a satisfactory time line, and all of the contractors conduc...

- Kevin Killion
81947

I recently got three windows installed on the same wall in my house. Working with the sales associate and the install team was very pleasant and the turnaround for custom sized windows was pretty quick. The quality of what you get for the price you end ...

- John Franklin
81982

Quick gutter installation (I mean tear-down, install, and clean-up). Under two hours. Quality work, great looking product, friendly people, reasonable price. What more could you ask for?

- Christopher Olson

Everything You Need to Know About La Vista Roofers

I have Roofing Services work that I need done in La Vista. What should my budget be?

Our data on recent roofing contractor projects in La Vista shows that larger roofing services projects in city are often upwards of $129.00. However, this price depends on a number of factors. Cost can increase or decrease based on any/all of the following:

  • Location: roofing contractors travel time may factor into the budget.
  • Cost of materials. This is an important factor of your roofing services project budget. You can purchase materials yourself, but remember that your roofing contractor professional maybe be able to leverage relationships with other companies to save on material costs.
  • Company ratings: Highly-rated roofing contractors tend to be more expensive. Decide what balance between ratings and cost is right for you.

As always, every project is different and you should contact multiple roofing contractors throughout La Vista to ensure your project is done right.

What La Vista zip codes are served by Roofing Contractors?

La Vista has 300 total Roofing Contractor companies that service multiple zip codes. We've put together a list of areas in and around La Vista with the most Roofing Contractors:

  • 6 Roofing Contractors in 68137.
  • 6 Roofing Contractors in 68046.
  • 6 Roofing Contractors in 68138.
  • 12 Roofing Contractors in 68133.
  • 6 Roofing Contractors in 68128.

What should I check for once my Roofing Contractor in La Vista has finished working?

Every roofing services project is going to have different results, but here are a few things to check for once any roofing services company has told you they've finished the job:

  • Obviously you want to do a visual inspection. Even if you're unfamiliar with roofing services work, this gives you the opportunity to ask questions (even basic ones like, what did you do?).
  • Ask the roofing contractor to describe what they did. Whether your roofing services project was a repair job or a building job, have them run you through what was done.
  • Compare the description provided on your roofing services project estimate to the work completed. Did the professional do what was promised?
  • Request that the roofing contractor do a follow-up visit to check on the work. Most professionals are willing to do this, especially if you ask them.

All Roofers in La Vista, NE

Porch Pro Headshot HomeShield Roofing & Exteriors, LLC
Roofers
Serves La Vista, Nebraska
Our business is a family owned company based in Lincoln, NE. We specialize in roofing, siding, windows, and gutter installation. With over 18 years of industry experience, we appreciate the opportunity to serve you. HomeShield has provided exceptional services and workmanship to a number of homeowne...Read more about HomeShield Roofing & Exteriors, LLC
Our business is a family owned company based in Lincoln, NE. We specialize in roofing, siding, windows, and gutter installation. With over 18 years of industry experience, we appreciate the opportunity to serve you. HomeShield has provided exceptional services and workmanship to a number of homeowne...Read more about HomeShield Roofing & Exteriors, LLC
Porch Pro Headshot Johnson Roofing & Construction
Roofers
Serves La Vista, Nebraska
We are a local, family-owned roofing, siding, gutter, and window contractor based in Omaha, Nebraska. We strive each day to make sure our customers know that we are a contractor they can trust and rely upon. In that spirit, we do not require any deposits or prepayments - we only invoice for our work...Read more about Johnson Roofing & Construction
We are a local, family-owned roofing, siding, gutter, and window contractor based in Omaha, Nebraska. We strive each day to make sure our customers know that we are a contractor they can trust and rely upon. In that spirit, we do not require any deposits or prepayments - we only invoice for our work...Read more about Johnson Roofing & Construction
Porch Pro Headshot Marathon Home Services
Roofers
Serves La Vista, Nebraska
Roofing, Decks, Siding and More! We are a Locally Owned, Family Business in Bellevue Nebraska, Serving the Entire Metro Area. Our Services Include, but are not Limited to; -Roofing Repair and Replacement -Gutters -Decks Designed and Built (New or Replacements) -Fiber Cement Siding, Including Jame...Read more about Marathon Home Services
Roofing, Decks, Siding and More! We are a Locally Owned, Family Business in Bellevue Nebraska, Serving the Entire Metro Area. Our Services Include, but are not Limited to; -Roofing Repair and Replacement -Gutters -Decks Designed and Built (New or Replacements) -Fiber Cement Siding, Including Jame...Read more about Marathon Home Services
Porch Pro Headshot Exterior Remodel & Design
Roofers
Serves La Vista, Nebraska
(63)
Exterior Remodel & Design, a GAF certified roofing contractor, is a company that offers a full service on exterior home products that includes: roofing siding and gutters windows and doors Our roofers have extensive experience taking care of homes in Nebraska. We will come to your hom...Read more about Exterior Remodel & Design
Exterior Remodel & Design, a GAF certified roofing contractor, is a company that offers a full service on exterior home products that includes: roofing siding and gutters windows and doors Our roofers have extensive experience taking care of homes in Nebraska. We will come to your hom...Read more about Exterior Remodel & Design
Porch Pro Headshot Complete Contracting 402 LLC
Roofers
Serves La Vista, Nebraska
(2)
"Best experience we've had working with a contractor. We have a 3500 square foot condo and needed to have the entire interior repainted. They are very conscientious about the big details, but even more attentive to the small things that you notice when you look close. They absolutely were wonder...Read more about Complete Contracting 402 LLC
"Best experience we've had working with a contractor. We have a 3500 square foot condo and needed to have the entire interior repainted. They are very conscientious about the big details, but even more attentive to the small things that you notice when you look close. They absolutely were wonder...Read more about Complete Contracting 402 LLC
Porch Pro Headshot Castillo Exteriors
Roofers
Serves La Vista, Nebraska
(4)
Combining years of experience with a dedication to client satisfaction, Castillo Exteriors has established itself as the local leader in Residential Roofing, Commercial Roofing and Asphalt Shingles.
Combining years of experience with a dedication to client satisfaction, Castillo Exteriors has established itself as the local leader in Residential Roofing, Commercial Roofing and Asphalt Shingles.
Porch Pro Headshot synergy roofing group
Roofers
Serves La Vista, Nebraska
(23)
roofing contractor, siding windows etc..
roofing contractor, siding windows etc..
Porch Pro Headshot Makani Roofing
Roofers
Serves La Vista, Nebraska
Porch Pro Headshot Universal Renovations
Roofers
Serves La Vista, Nebraska
Universal Roofing is a roofing company that provides roof replacement, gutter cover installation, new roof construction, and roof flashing installation. They are based in Omaha. The United States Environmental Protection Agency has accredited Universal Roofing. They are also accredited by the BBB.
Universal Roofing is a roofing company that provides roof replacement, gutter cover installation, new roof construction, and roof flashing installation. They are based in Omaha. The United States Environmental Protection Agency has accredited Universal Roofing. They are also accredited by the BBB.
Porch Pro Headshot ASCO Restoration Services
Roofers
Serves La Vista, Nebraska
ASCO Restoration offers professional general contracting services to Omaha, NE, Council Bluffs, IA Communities. We are the leading experts in the industry and our A+ rating with the Better Business Bureau displays just that.
ASCO Restoration offers professional general contracting services to Omaha, NE, Council Bluffs, IA Communities. We are the leading experts in the industry and our A+ rating with the Better Business Bureau displays just that.
Porch Pro Headshot Viirt.com
Roofers
Serves La Vista, Nebraska
We're revolutionizing the roofing industry to save you both time and money! Why choose Viirt? - The best local installers We give homeowners peace of mind in providing trusted, Viirtified installers, ensuring the highest quality of work. - Up to 30% savings Viirt has simplified the roof replac...Read more about Viirt.com
We're revolutionizing the roofing industry to save you both time and money! Why choose Viirt? - The best local installers We give homeowners peace of mind in providing trusted, Viirtified installers, ensuring the highest quality of work. - Up to 30% savings Viirt has simplified the roof replac...Read more about Viirt.com
Porch Pro Headshot Bradco Companies, Inc.
Roofers
Serves La Vista, Nebraska
Porch Pro Headshot Medrano Construction
Roofers
Serves La Vista, Nebraska
Porch Pro Headshot Big 10 Restoration
Roofers
Serves La Vista, Nebraska

Latest projects near La Vista

Recent projects booked on Porch
Papillion 68046
Chimney Repair
Service needed
Chimney Repair
Start Date
I'm flexible
La Vista 68128
Roofing
Start Date
Within a week
Roofing project type
Gutter replacement