Business Details
38 Years
experience
Trusted Windows, Doors & Conservatories in Tewkesbury
Established in 1988, Firmfix Doors & Windows has built a reputation as a trusted family-run business specialising in the design, manufacture, and installation of premium windows, doors, conservatories, and orangeries. Our commitment to quality is underscored by ISO 9001 accreditation and BSI Kitemark certification, ensuring every product meets rigorous standards of thermal efficiency, security, and durability. We employ full-time, salary-paid fitters and an in-house building team to maintain exacting standards, avoiding subcontractors to prioritise customer satisfaction. Backed by a 10-year insurance-backed guarantee through QANW, we combine advanced technology with traditional craftsmanship to deliver tailored solutions.Our services span from initial design consultations using life-like software to planning permissions, electrical work, and flooring installations. With a focus on innovation, we offer warm roof upgrades and energy-efficient systems that reduce noise by up to 30%. Serving the Three Counties for over 35 years, we pride ourselves on transparency, no-pressure sales, and a customer-centric approach that has earned us consistent positive reviews and referrals.
Services
Windows
Doors
Conservatories
Orangeries
Roof Upgrades
Details
- Year established: 1988
Highlights and features
- We have over 35 years of experience in window and door installations.
- Our ISO 9001 accreditation ensures consistent quality standards.
- We employ full-time fitters, not subcontractors, for reliable service.
- Our 10-year insurance-backed guarantee provides long-term peace of mind.
- We offer bespoke design solutions using advanced visualisation software.
Associations and certifications
- ISO 9001
- BSI Kitemark
- QANW
What people say
Fantastic job
Amazing service
Friendly and professional
Highly recommend
Stunning results
Services
Windows
Our uPVC and aluminium windows combine security, thermal efficiency, and aesthetic appeal. Available in casement, tilt-and-turn, and sash styles, they feature A-rated glazing and PAS24 high-security options. Manufactured in the UK using Rehau and Origin profiles, they are designed for durability and low maintenance.
Doors
We offer composite, uPVC, and aluminium doors with enhanced security features, including Secure by Design certification. Options include front doors, bifolds, and patio doors in custom colours. All installations use full-time fitters to ensure precise fitting and long-term performance.
Conservatories
From lean-to to P-shaped designs, our conservatories use Rehau or Ultraframe systems with insulated roofs and energy-efficient glazing. We handle planning permissions, electrical work, and flooring, providing a complete solution for year-round use.
Orangeries
Combining traditional aesthetics with modern insulation, our orangeries feature brickwork bases and glazed roofs. The design integrates seamlessly with period and contemporary homes, offering versatile living spaces with full project management from concept to completion.
Roof Upgrades
Upgrade existing conservatories with our warm roof system, reducing noise by 30% and improving thermal efficiency. The lightweight design includes insulated panels and matching guttering, transforming older structures into comfortable, all-season spaces.
Questions
What services does Firmfix offer?
We specialise in windows, doors, conservatories, orangeries, roof upgrades, and related installations, including electrical and flooring work.
Are your products energy efficient?
All windows and doors are A-rated for thermal efficiency, with options like warm roofs to enhance insulation and reduce noise.
Do you provide guarantees?
Yes, every installation includes a 10-year insurance-backed guarantee through QANW, covering both materials and workmanship.
Which areas do you cover?
We serve Cheltenham, Gloucester, Worcester, Tewkesbury, and surrounding areas in the Three Counties region.
Can I finance my project?
Yes, 0% interest finance is available over two years, subject to status, with flexible options through Novuna Personal Finance.
Videos
Reviews (3)
Fiona Upton
May 23, 2020
Report
Firm Fix have supplied and fitted all new windows, exterior doors and a fantastic garage door for my father. So the lot. They have proved a skilled and considerate crew who get the job done properly with the minimum of fuss. We are 100% happy with their service and wouldn't hesitate to recommend them.
Paul Martin
Sep 03, 2019
Report
From start to finish of our new conservatory nothing was ever a problem. All planning, surveying, ground work and fitting was done by to a high standard. Everyone involved has been helpful and most importantly tidy too. Really impressed with the finished product and would reccomend to anyone!
Nick Empson
Aug 08, 2017
Report
Excellent service from start to finish. No gimmics or silly sales tactics just an honest and straight forward approach. The quality of the windows look to be excellent as was the fitting. Altogether a brilliant service from a local company. I would highly recommend without hesitation.
