Marlborough, Wiltshire
Conservatory transformed with an insulated tiled roof
A fully insulated tiled roof replacing tired polycarbonate, turning a seasonal conservatory into a calm, characterful room used every day of the year.
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About Us
About Thames Frames.
We specialise in premium replacement windows, composite doors, aluminium glazing, garage doors and conservatory roof replacements across Wiltshire, Oxfordshire, Gloucestershire and Berkshire. Quality products deserve quality installation, honest advice and exceptional customer service from start to finish.
Our Philosophy
"Every installation is an advert for the next one."
It's the sentence that shapes how we survey, how we manufacture and how we install. The finished job on your home is our reputation, and the reason most of our work comes from personal recommendation.
Our Story
Built around doing things properly.
Thames Frames is a regional specialist installing premium windows, doors, garage doors and conservatory roofs across Wiltshire, Oxfordshire, Gloucestershire and Berkshire.
Homeowners work directly with the people delivering the project. Every commission begins with a personal home visit, we listen, measure precisely and recommend the finish best suited to the property.
Our focus is professional workmanship, honest advice, attention to detail and genuine respect for our customers' homes. The majority of our work comes from personal recommendation, and we intend to keep it that way.
We also work alongside builders, developers and architects across the region, more about that on our Partnerships page.
We also like to give something back to the places we work, more about that on our Community page.
What Matters to Us
The principles behind every installation.
Respect for Your Home
Every property is treated with care from start to finish.
Professional Workmanship
Installed properly, with attention to every detail.
Honest Advice
Recommendations based on what's right for your home.
Clear Communication
You'll always know what's happening throughout your project.
Long-Term Relationships
Most of our work comes from recommendations, and we intend to keep it that way.
Our Guarantee
A 20 Year Guarantee, in writing.
Premium products. Expert installation. Lasting protection.
Every Thames Frames installation is covered by our 20 Year Guarantee, a written promise that the products we install and the workmanship behind them will stand the test of time.
Trusted performance, expert installation and peace of mind for years to come.
Certifications & Accreditations
Backed by recognised professional standards.
Assure Certification
Certified Installation
Every installation is independently registered and certified, giving you confidence that your installation complies with current Building Regulations.
Building Regulations Compliance
Building Regulations Compliant
Every applicable installation is registered and self-certified to meet current Building Regulations, providing complete peace of mind.
Insurance-Backed Guarantee
Protected for the Future
Your installation is backed by an insurance-backed guarantee, providing long-term protection should it ever be needed.
How We Work
A simple, considered process.
Step 01
Free Home Survey
We visit your home, listen carefully and understand what you'd like to achieve.
Step 02
Expert Advice
Honest recommendations on the products, finishes and glazing best suited to your property.
Step 03
Made to Measure
Every window, door and roof is precision-measured and manufactured specifically for your home.
Step 04
Professional Installation
Directly employed, uniformed installers working to the Thames Frames Installation Standard.
Step 05
Aftercare & Guarantee
Backed by our 20 Year Guarantee and a team that answers the phone long after handover.
Areas We Cover
A regional specialist, local to you.
We work across four neighbouring counties, close enough to survey your home personally and support you long after installation.
Wiltshire
Marlborough · Devizes · Chippenham · Salisbury
Oxfordshire
Burford · Witney · Bicester · Faringdon · Oxford
Gloucestershire
Cirencester · Tetbury · Lechlade · Cheltenham
Berkshire
Hungerford · Newbury · Reading · Wantage
Recent Projects
Recent Thames Frames installations.
A selection of genuine projects completed for homeowners across our service area.
Burford, Oxfordshire
Flush casement windows on a Cotswold stone cottage
Flush casement windows in a heritage cream, specified to respect the character of a stone cottage in a Cotswold conservation area.
Hungerford, Berkshire
Anthracite grey composite front door
An anthracite grey composite door specified for a contemporary refurbishment near Hungerford, smart brushed hardware, laminated glass and a crisp, considered finish to the front elevation.
Marlborough, Wiltshire
Anthracite aluminium bifolds to a garden room
A three-panel anthracite bifold to a rear garden room, opening the whole wall onto the lawn and framing the view when closed.
Faringdon, Oxfordshire
Chartwell Green insulated roller garage door
A compact Chartwell Green roller door fitted internally to a red-brick single garage in Faringdon. The original brickwork stays visible, framing the door and preserving the character of the frontage.
Cirencester, Gloucestershire
Traditional sliding sash windows on a Georgian townhouse
Traditional sliding sash windows across the front of a Georgian townhouse, period sightlines with modern thermal and acoustic performance.
Customer Reviews
What homeowners say.
"Really happy with our new aluminium sliding doors and three windows for our extension. They look fantastic and have really finished the extension off. The quality is excellent and the fitting was done really well. Everything was straightforward from start to finish and we’re really pleased with the result. Would definitely recommend Thames Frames"
Tracey Owen
Google review
"Thames Frames provided a professional and reliable service from start to finish. The installation was completed to a high standard, the team was punctual and tidy, and the new windows and doors look excellent. I would happily recommend them."
Krishan Mohindra
Google review
"Fantastic service from Thames Frames. Our new flush windows look stunning and have completely transformed the house. Lee and Trevor were brilliant throughout the installation—friendly, professional and took real pride in their work. Everything was left clean and tidy. Highly recommend!"
Keir Gower
Google review
Ready to Improve Your Home?
Arrange your free home survey with Thames Frames, expert advice, accurate measuring and no pressure.
Get In Touch
Ready to improve your home?
Whether you're replacing a single front door or transforming your entire home with new windows, doors or a conservatory roof, we're here to help.