Business Details
40 Years
experience
Trusted Home Improvements in Plymouth
Stormseal SW has been a trusted name in home improvements since 1986, specialising in high-quality uPVC windows, doors, and conservatories. Our team in Plymouth brings over 25 years of industry expertise, delivering energy-efficient solutions tailored to the unique needs of homeowners across Devon and Cornwall. We pride ourselves on using premium materials, including A-rated energy-efficient windows with u-values as low as 0.8W/mK, ensuring thermal performance and security. As members of Network VEKA and holders of accreditations such as BSI, BBA, and ISO, we combine rigorous quality standards with a 10-year guarantee on all installations.Our approach prioritises customer satisfaction through no-pressure sales, made-to-measure products, and a commitment to resolving complex projects that others deem impossible. With over 6,000 installations and 120+ positive reviews, we remain dedicated to enhancing homes with durable, aesthetically pleasing solutions.
Services
uPVC Windows
Energy-Efficient Windows
Fire Escape Windows
Sliding Sash Windows
Bi-Folding Doors
Composite Doors
Conservatories
Guardian Warm Roof
Roofline Products
Porches
Details
- Year established: 1986
Highlights and features
- We offer over 25 years of experience in home improvement installations.
- Our installations come with a comprehensive 10-year guarantee.
- We provide made-to-measure products tailored to individual requirements.
- Our team holds industry-recognised accreditations including BBA and ISO 9001.
- We serve Devon and Cornwall with local expertise and dedicated support.
Associations and certifications
- BSI
- BBA
- Secure by Design
- ISO 9001
What people say
Stunning results
Professional installation
Excellent customer service
Durable products
Value for money
Services
Conservatories
We design and install custom conservatories, including Edwardian, Victorian, and Lean-To styles. Using Ultraframe systems and Guardian Warm Roofs, our structures provide year-round comfort with advanced insulation. Each project is tailored to complement existing architecture while maximising natural light and garden views.
uPVC Windows
Our A-rated uPVC windows feature thermal efficiency down to 0.8W/mK, reducing energy bills and noise pollution. Available in casement, sliding sash, and tilt-and-turn styles, they combine security with low-maintenance durability for both modern and traditional properties.
Composite Doors
We supply and install reinforced composite doors with galvanised steel cores for enhanced security. These weather-resistant doors come in various finishes and include multi-point locking systems, offering both aesthetic appeal and improved home insulation.
Roofline Products
Our uPVC roofline solutions replace rot-prone timber with durable, maintenance-free alternatives. Products include fascias, soffits, and guttering that resist warping while improving a property's exterior appearance and structural longevity.
Porches
Custom-designed porches enhance property aesthetics and security. Constructed with energy-efficient uPVC frames and glazing, these structures provide weather-protected entryways while increasing home value through added space and improved kerb appeal.
Questions
Do you offer energy-efficient window options?
Yes, our A-rated uPVC windows achieve u-values as low as 0.8W/m²K for superior thermal efficiency.
What areas do you serve?
We operate throughout Devon and Cornwall, including Plymouth, Exeter, and Truro.
Are your installations guaranteed?
All work comes with a comprehensive 10-year guarantee and Assure certification.
Can you replace existing conservatory roofs?
Yes, we install Guardian Warm Roofs that convert polycarbonate/glass roofs into insulated tiled systems.
Do you provide made-to-measure solutions?
Every product is custom-manufactured to fit individual property specifications exactly.
Are your team members accredited?
We hold industry accreditations including BBA, BSI, and ISO 9001 for quality assurance.
Reviews (6)
Will Davies
May 08, 2021
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Excellent service from all of the team, but especially from "the twins" who installed our windows, door and facia. We are very please with the quality of the product, how the site was left (clean and tidy) and the "make good" works. Thank you.
Sally Tayler
Dec 16, 2020
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Might be cheaper initially but poor quality, getting all ours replaced with new due to blown vacuums and water ingress. ** update to original post. Thank you for the response below, I've already contacted you but the three windows are outside of the ten year warranty and you gave me contact details for someone to replace/repair the glass panels so I guess you didn't log a report. We just decided to replace the whole thing before the others go too as we have several other units fitted of a similar age and they have no problem
John Welsford
Oct 30, 2020
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Just had my conservatory roof replaced with a Guardian warm roof installed by Stormseal. The fitters Mark & Luke undertook the work diligently and professionally. They are great guys intent on doing a great job. I couldn't be more pleased and highly recommend these guys and stormseal in general for a great job at a competitive price.
Howard Perks
Mar 02, 2020
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It's a lovely country pub that is dog friendly. If you dine there it can be cramped in some eating areas and we had to step over dogs to get seated. The food is good.
Debbie Burgess
Aug 18, 2019
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We have just had all the windows at the back of our house replaced over the last couple of days, the service from the start from when we first enquirerd has been great, a No pressure quote and everybody we dealt with has been friendly, helpful and helped to advise us on the best windows for our needs. The two lovely guys that came to fit the windows were always on time, very friendly, Very clean cleared up each day when they had finished, did not stop, even for breaks, drinks on the go. We would highly recommend them and will definitely be booking them for future projects.
J. C. Tiaraqueen
Jan 01, 2019
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We have just had our windows replaced at the rear of our property. Very pleased with the quality of workmanship, price and quality of the windows. This is the 2nd time that we have used the company. Earlier this year, we had a new front door installed.again the quality of the door and service we received was excellent. We shall certainly be contacting them again when we are ready to renew the bay windows at the front of our house.
