Business Details
40 Years
experience
Your Trusted Partner for Windows, Doors & Conservatories 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 serves Plymouth and the wider Devon and Cornwall regions, offering tailored solutions for both residential and commercial properties. With over 25 years of experience, we pride ourselves on delivering energy-efficient, durable products that enhance the comfort and security of homes. Our commitment to excellence is underscored by a 10-year comprehensive guarantee on all installations and partnerships with industry leaders like Ultraframe. As members of Network VEKA, we undergo rigorous assessments to ensure customer satisfaction remains our top priority. Every product we supply is manufactured in Great Britain to the highest standards, including A-rated energy-efficient windows with u-values as low as 0.8W/mK.Our no-pressure sales approach ensures impartial recommendations tailored to each customer's unique needs, supported by a free, no-obligation quotation service. Our in-house specialists work closely with clients to design bespoke conservatories and porches, transforming properties with modern, low-maintenance solutions. From replacing outdated timber rooflines to installing bi-folding doors and Guardian Warm Roofs, we combine technical expertise with exceptional customer service. Our track record of over 6,000 installations and 120+ positive reviews reflects our dedication to quality, reliability, and long-term client relationships.
Services
uPVC Windows
Composite Doors
Conservatories
Guardian Warm Roof
Porches
Guttering
Roofline
Details
- Year established: 1986
Highlights and features
- 25+ years of experience in home improvement installations
- 10-year comprehensive guarantee on all products and workmanship
- No-pressure sales with impartial, customer-focused recommendations
- Made-to-measure products tailored to individual property requirements
- UK-manufactured windows with A-rated energy efficiency
Associations and certifications
- Network VEKA
- BSI
- BBA
- Secure by Design
- ISO
What people say
Stunning inside and out
Pleased with them
Second to none service
Happy with the standard of finish
Highly recommend your business
Services
uPVC Windows
Our uPVC windows combine energy efficiency, security, and aesthetic appeal. Manufactured in the UK to exacting standards, they feature A-rated energy performance and u-values as low as 0.8W/mK. These windows reduce heat loss, noise pollution, and maintenance requirements while enhancing property value. Ideal for both modern and traditional homes across Devon and Cornwall.
Composite Doors
Durable composite doors offer superior security and thermal efficiency. Reinforced with a steel core, they resist forced entry and weather damage while maintaining low maintenance. Available in various styles, they provide long-lasting performance and improved insulation for front entrances or garden access points in residential properties.
Conservatories
Custom-designed conservatories create versatile living spaces with year-round usability. Options include Edwardian, Victorian, and Lean-To styles with traditional or Guardian Warm Roofs. Our in-house specialists ensure seamless integration with existing architecture while maximising natural light and energy efficiency for Devon and Cornwall homes.
Guardian Warm Roof
Transform existing conservatories with insulated tiled roofs that maintain structural integrity. The Guardian Warm Roof system eliminates temperature extremes, allowing comfortable use throughout the year. This upgrade retains original windows and doors while significantly improving thermal performance and property value.
Porches
Made-to-measure porches enhance kerb appeal and provide weather-protected entryways. Constructed with durable uPVC materials, they combine security, energy efficiency, and aesthetic harmony with existing architecture. Ideal for properties in Plymouth and surrounding areas seeking functional space expansion.
Questions
What areas do you serve?
We operate across Devon and Cornwall, with a focus on Plymouth and surrounding regions.
Do your installations come with guarantees?
All installations include a comprehensive 10-year guarantee for both products and workmanship.
Can you help with custom conservatory designs?
Our in-house specialists create bespoke conservatories tailored to your property's architecture and personal requirements.
Are your products energy efficient?
Our windows meet A-rated energy standards with u-values as low as 0.8W/m²K for optimal thermal performance.
Do you offer free quotations?
We provide free, no-obligation quotations with impartial recommendations for all projects.
Reviews (4)
John Welsford
Jul 01, 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.
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.
Howard Perks
May 20, 2019
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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.
J. C. Tiaraqueen
Oct 29, 2018
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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..
