Business Details
28 Years
experience
Your Trusted Partner for Windows & Doors in Middlesbrough
At Celestial Windows, we have been dedicated to delivering high-quality windows, doors, and conservatories for over 25 years. As a family-run business rooted in Middlesbrough, we combine craftsmanship with innovation to create products that endure. Our in-house manufacturing ensures precision, while our professional installation team prioritises minimal disruption and customer satisfaction. Backed by a 10-year FENSA insurance guarantee, we focus on security, energy efficiency, and aesthetic appeal. Our teams expertise spans uPVC casement windows, composite doors, and conservatories tailored to individual needs.With a commitment to local service, we serve Teesside and the North East, offering A-rated glass and advanced locking systems. Our showroom allows clients to witness our manufacturing process and explore finished products. Recognised for reliability and timeliness, we ensure every project meets rigorous quality standards. From initial consultation to after-sales support, we provide comprehensive guidance, ensuring our clients visions become reality.
Services
uPVC Casement Windows
Composite Doors
Bi-Folding Doors
French Doors
Conservatories
Orangeries
Garden Rooms
Panel Doors
Patio Doors
Icotherm Roof Systems
Details
- Year established: 1998
Highlights and features
- We have over 25 years of experience in window and door manufacturing.
- Our products are manufactured in-house for quality control.
- All installations come with a 10-year FENSA insurance-backed guarantee.
- We use A-rated glass and high-security locking systems as standard.
- Local expertise serving Teesside and the North East UK.
Associations and certifications
- FENSA
What people say
Great service
Highly recommend
Excellent company
Competitive price
Outstanding workmanship
Services
uPVC Casement Windows
Our uPVC casement windows combine energy efficiency with modern design, featuring A-rated glass and multi-point locking systems. Ideal for enhancing insulation and security, they suit both traditional and contemporary homes. Customisable in various colours and styles, they ensure seamless integration with your propertys aesthetics.
Composite Doors
Composite doors offer superior security and durability, reinforced with high-strength materials and advanced locking mechanisms. Available in multiple finishes, they provide thermal efficiency and weather resistance, particularly beneficial in flood-prone areas. Their low-maintenance design ensures long-term performance without warping or fading.
Conservatories
Our conservatories create versatile living spaces with maximum natural light, available in Edwardian, Victorian, and lean-to styles. Built with durable uPVC frames and insulated roofs, they are designed for year-round comfort. Customisable to match your homes architecture, they add value and functionality.
Icotherm Roof Systems
Icotherm roofs transform conservatories with thermally efficient, insulated timber constructions. They regulate temperature, reduce energy bills, and comply with UK building regulations. Available in multiple designs, they offer a quick retrofit solution for existing conservatories, ensuring comfort without structural alterations.
Bi-Folding Doors
Bi-folding doors provide seamless indoor-outdoor living, crafted from durable uPVC with high-security features. They open fully to maximise space and light, ideal for modern homes. Customisable in size and finish, they enhance both functionality and visual appeal while maintaining energy efficiency.
People
Alan Sewell
Owner
Alan Sewell founded Celestial Windows in 1998 and has led its growth into a trusted name in window and door manufacturing. With over 25 years of industry experience, he oversees operations and ensures adherence to quality standards. His commitment to customer satisfaction and innovation drives the companys success.
Questions
Do you offer a guarantee on installations?
Yes, all installations come with a 10-year FENSA insurance-backed guarantee.
What areas do you serve?
We serve Teesside and the wider North East UK region.
Are financing options available?
Yes, we offer flexible finance options to suit different budgets.
Can you replace conservatory roofs?
Yes, we install Icotherm warm roofs for improved insulation and comfort.
Do you provide emergency repair services?
No, we do not offer emergency services but prioritise prompt appointments.
Are your products energy efficient?
Yes, we use A-rated glass and insulated materials to enhance energy efficiency.
Reviews (4)
Rachael Westwood
Aug 21, 2021
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An excellent company. Great quality windows and doors and a friendly and professional service. We have used this company three times now for different projects and they never dissapoint. We had our car broken into and keys stolen, they made it a priority to change our locks for us, you don't get that very often these days, I was quite overwhelmed with how serious they took it. If you want a company that cares about you as well as the job then use Celestial.
Mike Lowe
Mar 24, 2021
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Great service from start to finish. We looked at a few companies before picking Celestial to install our new conservatory and they delivered a great product for us at a good value. Everything went smoothly from initial conversation through to design and installation. I would highly recommend them based on our experience.
Derek Mullins
Nov 14, 2019
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Just had some remedial work done on our French Doors and Bay Window's, not originally fitted by Celestial, from getting in touch with there office, to guy coming out to see what required doing to guy today doing these repairs we cannot recommend them highly enough. Had Celestial in passed for winfows and door and they are great quality.
C. A.
Jan 07, 2019
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Great service from start to finish. Got three quotes for Windows, celestial were cheapest. Guy who did initial measure and quote was really friendly and explained all aspects. There is a finance option (however they were in process of changing finance providers so this wasnt available at time of signing up however due to this they did offer a payment plan over two months if needed). On the day the fitters were very professional, covers placed throughout house to protect carpet and fitted quickly (despite it chucking down with rain). They even fixed our front door which was stiff and sticking for
