A local surveyor visits your property in Peacehaven to confirm sizes, reveal vents, check sills and discuss styles, energy targets and planning requirements before we quote.
Our Services
Double Glazing supplied and fitted in Sussex
About This Service
Double Glazing
The Window Workshop has supplied and installed double glazing across Sussex since 1998. We work with trusted suppliers to source Planitherm glass, Argon-filled units, warm-edge spacers and multi-chamber frames for genuine thermal performance. FENSA MTC-qualified installers issue certification with every job and our 10-year insurance-backed guarantee gives long-term peace of mind. We also carry out repairs and maintenance to extend the life of existing windows and doors.
Our Process
How It Works
01
Survey & Measure
02
Sourcing & quality checks
Sealed units and uPVC or aluminium frames are sourced to order from trusted suppliers — the right colours, glass specification and build quality for your property.
03
Fit, Test & Certify
Our FENSA MTC-qualified fitters carry out a tidy installation, test seals and drainage, leave the site clean and issue FENSA certification plus the 10-year insurance-backed guarantee.
Sourced and fitted across Sussex. The Window Workshop supplies double-glazed sealed units and frames to order, with accurate custom sizes for bay windows, vertical sliders and heritage-style frames, plus a wide choice of foils and hardware. We specify Planitherm low-emissivity glass, Argon-filled cavities and warm-edge spacers as standard where required, and can supply either uPVC or aluminium systems depending on the project.
Repairs, upgrades and aftercare.If a sealed unit has failed, or your frames need adjustments, we provide unit replacement, draught sealing, hinge and handle renewals and periodic maintenance to prolong performance. Every installation is completed by FENSA MTC-qualified fitters and issued with a FENSA certificate and our 10-year insurance-backed guarantee. For trade or DIY customers we also supply units and components direct.
Benefits
Why Choose us for Double Glazing?
Bespoke solutions & reliable quality
We work with trusted suppliers to source glazing and frames to your exact requirements — bespoke sizes for sash, bay and conservation properties with consistent fit and finish.
Certified installers & long guarantee
All installations are completed by FENSA MTC-qualified fitters and supplied with FENSA paperwork and a 10-year insurance-backed guarantee for added protection.
True energy performance
We build sealed units with Planitherm glass, Argon gas and warm-edge spacers in multi-chamber frames to reduce heat loss and condensation, improving comfort and lowering energy demand.
FAQ
Frequently Asked Questions
A failed sealed unit commonly shows visible misting between the panes, water droplets or a loss of insulating performance. Our surveyor can confirm failure on inspection and advise whether a unit replacement or a full frame upgrade is the best long-term solution.
Yes — in many cases we replace only the sealed unit while retaining sound frames. We assess frame timber/uPVC condition and drainage during the survey; if frames are warped or drainage is blocked we’ll recommend the most appropriate repair or replacement option.
All installations are carried out by FENSA MTC-qualified fitters and each job receives FENSA certification. Installations are also covered by our 10-year insurance-backed guarantee, offering both workmanship and product reassurance.
We specify sealed units with Planitherm low-emissivity glass, Argon gas fills, warm-edge spacers and multi-chamber frames — a combination that significantly reduces heat loss and helps prevent internal condensation compared with older single glazing.
Yes. We work with trusted suppliers to source bespoke units and frames to match non-standard openings and period property requirements. We also supply trade and DIY customers with sealed units and components on request.
Testimonials
What our clients say about our work
“I had a great experience with the window workshop from initial contact to job completion. Dan was very responsive with my window query and came over to assess/quote for the job very quickly which I appreciated. Steve replaced our window and he did an incredible job, it’s really transformed our bathroom already. He also demonstrated a high level of professionalism as well as being very friendly. I appreciated him being as quiet as he could completing the job and he tidied up to a high standard. Thanks again window workshop. I’m sure we will be in touch again for a new front door!”
Emily Towns
Google
Google“We were directed to The Window Workshop by a good friend who has had some work done by them and we are very happy with them.
Daniel first came around to give us a quote and was polite, friendly and professional with a wealth of knowledge which automatically put us at ease. We had both our new front door and conservatory fitted and installed and are very pleased with the results (pictures added below)
Mark, Steve, Paul, Dean and James were all very professional, polite and hardworking. We'll definitely be using their services again when the need arises.”
Sunny O
Google
“Just had sitting room windows and a new front door
We are over the moon with the results.work men worked very cleanly were polite and very helpful”
Patricia Bonello
Google
“Daniel at the window workshop is absolutely brilliant. It was a relief to speak with him after experiencing the aggressive sales tactics of the big national window companies. We’re delighted with our new windows and the whole team were a delight to have in our home doing the fitting. Polite, tidy and good fun too! If we need more windows in the future we will go straight back!”
Sophie Cooke
Google
Other Services
Explore Our Other Services
Arrange your double glazing survey in Peacehaven
Book a friendly, no-obligation survey with our local team. Call 01273 589066 or email info@thewindowworkshopsussex.co.uk and we’ll arrange a convenient appointment.