Business Details
18 Years
experience
Trusted Window Door & Conservatory Experts in Plymouth
Interseal South West Ltd has established itself as a trusted provider of high-quality windows, doors, and conservatory installations across Plymouth and the South West. As a FENSA-approved company, we combine expert craftsmanship with premium products from reputable manufacturers, ensuring durability and aesthetic appeal for both domestic and commercial properties. Our team offers free, no-obligation consultations to guide clients through tailored solutions, from energy-efficient windows to bespoke conservatories. With a 10-year backed guarantee on all installations and no deposit required, we prioritise transparency and customer satisfaction. Our reputation for reliability and competitive pricing is reflected in our 95% customer satisfaction rating from 385 HomePro reviews. Whether upgrading a single window or undertaking a full conservatory conversion, our specialists ensure seamless project execution from design to completion.
Services
Windows
Doors
Conservatories
Fascias
Guttering
Rooflines
Energy Efficient Solutions
Served areas
- plymouth, devon, cornwall
Details
- Year established: 2008
Highlights and features
- We offer a 10-year backed guarantee on all installations
- Our team provides free, no-obligation consultations
- We are FENSA-accredited for quality compliance
- No deposit required for our services
- We serve both domestic and commercial clients
Associations and certifications
- FENSA-approved
Payment methods
- Cash, Debit cards, Credit cards, Checks
What people say
Very professional workers
Excellent contractor
High standard
Value price
Will use again
Services
Windows
We supply and install a range of windows including casement, sash, and energy-efficient options. Our products enhance thermal performance and security while complementing property aesthetics. All installations are completed by certified professionals with a focus on precision and durability.
Doors
From uPVC to composite and bi-folding doors, we offer durable and stylish entrance solutions. As approved stockists of brands like Solidor, we ensure superior security and insulation. Free consultations help clients select designs matching their property's style and functional needs.
Conservatories
We design and install custom conservatories, including Victorian, Edwardian, and garden room styles. Our projects incorporate high-quality materials and tailored designs to maximise natural light and usable space, backed by a 10-year insurance guarantee.
Fascias
Our fascia and guttering installations protect properties from water damage while enhancing exterior appeal. We use durable materials from trusted manufacturers, ensuring long-term performance and minimal maintenance for homeowners in Plymouth and surrounding areas.
Rooflines
We provide comprehensive roofline solutions, including fascias, soffits, and guttering. Our systems direct rainwater away from properties, preventing structural issues. Products are competitively priced and installed by experienced technicians for lasting reliability.
Questions
What areas do you serve?
We operate across Plymouth and the wider South West England region, including both residential and commercial properties.
Do you offer free consultations?
Yes, we provide free, no-obligation consultations to discuss your project requirements and product options in detail.
Are your installations FENSA-certified?
Yes, we are FENSA-approved installers, ensuring all window and door work meets building regulations and quality standards.
What guarantees do you provide?
All installations come with a 10-year backed guarantee, and we require no deposit to start work.
What types of conservatories do you install?
We specialise in Victorian, Edwardian, garden room, and bungalow conservatories, with customisable designs to suit individual needs.
Do you supply roofline products?
Yes, we provide and install fascias, guttering, and soffits from reputable manufacturers to protect your property from weather damage.
Reviews (4)
Leila Nottage
Dec 14, 2020
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Paul, Lee and all of the team are fantastic and wed definitely recommend using them. Theyve just fitted a new front and back door. It came in sooner than expected, even with the crazy world were in right now. They kept me posted and the fitters on the day were brilliant. Tidy, polite and very quick! Paul called to check we were happy and hed even driven by to check the work, a lovely touch that you rarely see these days. We will be using Interseal in the future for sure. Thanks all
Ray Delamare
Sep 07, 2020
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We had sliding patio doors fitted, which required a part of the wall to be knocked down. The service was fantastic, clean, professional, and the doors are great!
Claire Neville
Jul 15, 2018
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So pleased with my new windows Interseal fitted last week - they look great. Really impressed with the service provided by Interseal and being a Plymouth based business so easy to deal with.
Karen Naughton
Jul 15, 2018
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Inter seal have just fitted my front door, they were fantastic. Really friendly and very professional service I would recommend them to anyone. Many thanks.