Business Details
Trusted Window, Door & Conservatory Installers in Plymouth
Interseal SW Ltd South West 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 industry expertise with a commitment to customer satisfaction, offering a comprehensive range of products designed to enhance both residential and commercial properties. Our team of specialists provides tailored solutions, from energy-efficient windows to bespoke conservatories, ensuring every project meets exacting standards. With a 10-year backed guarantee on all installations, we prioritise durability, aesthetics, and functionality to deliver lasting value. Clients benefit from our free, no-obligation consultations, where our experienced professionals guide them through product selection and design. Our reputation for reliability and excellence is reflected in our 95% customer satisfaction rating and numerous positive testimonials. We specialise in both domestic and commercial projects, ensuring every client receives a service tailored to their unique requirements. Our product range includes premium options such as Solidor composite doors, aluminium conservatories, and energy-efficient glazing solutions. By maintaining strong relationships with leading manufacturers, we guarantee competitive pricing without compromising on quality. Our dedication to customer service extends beyond installation, with ongoing support to ensure long-term satisfaction.
Services
Windows
Doors
Conservatories
Fascias
Guttering
Rooflines
Energy Efficient Glazing
Composite Doors
Aluminium Conservatories
Bespoke Installations
Served areas
- plymouth, devon
Highlights and features
- We offer a 10-year backed guarantee on all installations.
- Our team provides free, no-obligation consultations for tailored solutions.
- We are FENSA-approved for industry-recognised quality standards.
- Our specialists deliver both residential and commercial projects.
- We stock premium products from leading manufacturers at competitive prices.
Associations and certifications
- FENSA
Payment methods
- Cash
- Debit cards
- Credit cards
What people say
Very professional workers
High standard work
Excellent contractor
Competent staff
Will use again
Services
Windows
We supply and install a comprehensive range of windows, including bay, bow, casement, and energy-efficient options. Our products enhance thermal performance, security, and aesthetics while complementing diverse architectural styles. All installations are carried out by certified professionals to ensure precision and durability.
Doors
Our door solutions include composite, uPVC, French, and bi-folding options, designed to improve security, insulation, and visual appeal. As approved stockists of brands like Solidor, we guarantee high-quality materials and expert fitting for both residential and commercial properties.
Conservatories
We design and install custom conservatories, including Victorian, Georgian, and aluminium styles, tailored to individual preferences. Our structures maximise natural light, add property value, and provide versatile living spaces with weather-resistant durability.
Fascias
Our fascia and guttering systems protect properties from water damage while enhancing exterior aesthetics. Manufactured by reputable suppliers, these components ensure long-term performance and require minimal maintenance to preserve structural integrity.
Energy Efficient Glazing
Our energy-efficient windows and doors reduce heat loss, lower utility bills, and improve acoustic insulation. Using advanced glazing technology, we help clients achieve sustainable, comfortable living and working environments without compromising on style or security.
Questions
What areas do you serve?
We operate across Plymouth and the South West, providing installations for 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.
Are your installations FENSA-certified?
Yes, we are FENSA-approved, ensuring all our work meets industry standards for quality and compliance.
What guarantees do you provide?
All installations come with a 10-year backed guarantee for added peace of mind.
Can you help with conservatory designs?
We offer bespoke conservatory designs, including Victorian, Georgian, and aluminium styles, tailored to your space and preferences.
Reviews (9)
Mark Antony Raines
Feb 12, 2025
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Recently getting windows and doors done via Westward Housing and Government scheme, Excellent service, cleaned up after job finished, friendly and informative Would highly recommend this company
Sharon Coker
Jan 01, 2025
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An amazing group of professional individuals from management to fitters, totally recommend these guys, they were hard working, and cleaned up leaving everything spotless. Thank you
Billy Goord
Sep 21, 2024
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I contacted Lee to fit all new windows and doors at my property and he was informative and very helpful throughout. The quality and fittings have been excellent - especially the bifold doors. Highly recommend
Joy Pateman
Oct 26, 2023
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The Installers were excellent neat and tidy with very little noise or mess and really took a pride in their work. The new porch has brought us up to date. Thanks to all staff concerned.
Richard Clifton
Aug 29, 2021
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TIME WASTERS - I asked for a quote from Interseal for replacement windows and instead a site visit, I was asked to send a photo for them to quote from which was strange enough. I then tried to contact them several times only to be ignored. Make your own mind up.
Claire Chinn
Mar 11, 2016
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Interseal are an extremely professional business, providing quality workmanship and a freindly team. I am extremely happy with the work they did for us.
Karen Naughton
Nov 14, 2015
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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.
Claire Neville
Nov 05, 2015
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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.
Claire Neville
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.