Gaithersburg Roofing, Siding, Gutters and Window Replacement

Providing Experienced Roofing and Home Improvement Services

For over 30 years, we’ve provided exemplary home improvement services to Ellicott City, Maryland homeowners and business owners. Semper West Roofing & Siding offers roofing, siding, window replacement, and other home improvement services to the area. We assign a lead supervisor for every job site to ensure the highest level of customer service and workmanship. Our trained and certified team members specialize in CertainTeed, Tamko, and GAF products. We’ll help you find the perfect home improvement products that fit your budget, desires, and needs for your home or business. Call us today for a free estimate!


We offer new roof installation and roofing repairs using the highest quality products in the business.


From measurements to installation, our trained professionals provide durable, aesthetically pleasing windows perfect for your home.


Whether your home needs gutter repairs or a new system, we install, maintain, and provide custom-fitted gutter systems.


From simple repairs to new installation, we offer a wide variety of types of durable siding materials.

John Kalma
John Kalma
Price was competitive but not the lowest. Roofing crew of 7 was very experienced. I was amazed how the crew worked: every worker knew what to do and when to do it. Job was done on time with high quality.
Rajeev Agrawal
Rajeev Agrawal
SemperWest was outstanding in finding a roof leak, explaining the problem clearly, and fixing it. Brian Carpenter heads the company and is very knowledgeable and hands on. Excellent support and scheduling was provided by Kay from their office.
Jan Moo
Jan Moo
Extremely positive experience with Semper West- beginning with the initial salesperson thru installation and after. I found them to be very knowledgeable and honest. They showed up on day the installation on time and the roofers worked efficiently on a very hot day. I am usually too lazy to write reviews but I was very pleased with my experience with them. I would highly recommend them.
Michael Nealy
Michael Nealy
Semper West was fantastic from start to finish! I requested estimates from nine companies to replace all siding, trim, three doors, and five windows on my home. Semper West was the fastest to come out, provided an estimate the same day, and they ended up being the best price. They did not pressure us as we evaluated our options and were very responsive as we finalized the details. They gave an accurate estimate of the timeline to receive materials and the time needed to complete the work. They were communicative as we approached material delivery day, well coordinated and professional as the work was done, and the workmanship was excellent. I guess this is why they offer a 20 year workmanship warranty when their competitors only offer 1-2 years! Every step of the work plan happened exactly as they told us it would, and we couldn't be happier with the results. Great value, honest, communicative, on time, attention to detail, spotless cleanup, and excellent customer service. I don't know what else you could ask for! Thank you Semper West!
Patricia Croker
Patricia Croker
Great job - In and out and all cleaned up. Second time using and I highly recommend them and have.
Michael Pickens
Michael Pickens
Our roof was damaged in a wind storm and we decided to have it replaced. Semper West came out recommended from a neighbor. Their sales/lead staff came out and gave us an estimate on our schedule, patiently answered the million questions we had (which were already answered in their documentation). The installation staff came out and completed the entire job in one day.

Roofing Services for Homeowners and Businesses

We’re dedicated to sharing our roofing knowledge and experience with you. We offer free estimates for all services, including:

  • Roof Replacements – We offer various options to fit any roofing budget. Our installers are certified and extensively trained to meet your needs, whether metal roofing, asphalt shingle, slate roofing, or rubber.
  • Roof Repairs – We provide a high level of service for all of your roof repairs. No matter your budget, we use the best products to fit your roofing repair needs.
  • Commercial Roofs – From small to large companies, we offer multiple roofing types. We’ll take care of your business roofing and repair needs.

Our Customer Care Difference

The safety of your home is our priority. We focus on providing you with the highest quality service and products to ensure your happiness and well-being in your home or business. We’re licensed, insured, and bonded to further our promise for the highest level of customer care. We’re here to help you decide if you need repairs or replacements for your home. Always feel free to ask questions and share concerns about these decisions. No matter how big or small, we offer free estimates and honest answers about your home improvement projects.

Customer Testimonials

Semper West customer service was wonderful and very friendly to talk to, and the job was fast and professional now the siding look as new without replaced the new siding as most contractors recommend. Kudos to Jonathan Carswell for excellent job and pro quality work. Looking forward to work with this company in the future.

Jonathan T., Silver Spring, MD

Schedule a Free Estimate or Call 301-874-9055

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