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Carolyn Tremlett
The lads turned up on time after a sms stating they were on their way. They were amazing.
Rubber Seal Repair in Portsmouth
Professional rubber seal repair service across Portsmouth and the wider PO area. Fully guaranteed, locally based, and ready to help today.
Why Rubber Seal Repair Matters in Portsmouth
Rubber seal repair in Portsmouth is essential for maintaining your home's comfort and energy efficiency. Over time, the rubber gaskets and weatherseals on your windows and doors perish, crack, and shrink, allowing cold draughts and rainwater to penetrate your property. If you've noticed whistling sounds around your windows in Southsea or Fratton, or water pooling on your windowsills, it's likely time for a seal replacement. Portsmouth's island geography and constant exposure to sea air can significantly speed up rubber degradation, making this a common issue for Portsmouth properties.
Our specialist rubber seal replacement service covers all of Portsmouth and the wider PO area. We carry an extensive range of seal profiles to match virtually every window and door system on the market, from older profiles found in period homes near the Spinnaker Tower to current systems used in newer builds across Copnor, Hilsea, and North End. Our engineers carefully remove the old perished rubber, clean the channels, and press-fit new seals that restore a perfect weathertight barrier against the elements.
Homeowners in Portsmouth who invest in professional rubber seal replacement often notice an immediate improvement in comfort and a reduction in energy bills. Properly sealed windows and doors eliminate cold spots and prevent condensation caused by warm moist air meeting cold surfaces. Every seal repair in Portsmouth carried out by Restoration Glazing uses high-quality EPDM rubber seals designed for long-term UV and weather resistance. Our work is fully guaranteed, and we take pride in leaving your Portsmouth home draught-free and energy-efficient.
Draught Elimination
New seals create a perfect weathertight barrier, stopping cold draughts and improving your comfort at home.
Waterproofing
Properly fitted seals prevent rainwater ingress that can cause damp, mould, and structural damage over time.
Energy Efficiency
Sealed windows and doors reduce heat loss, helping lower your energy bills throughout the year.
Our Rubber Seal Repair Process
1
Get in Touch
Call us or use our rubber seal calculator to get a quote for your seal replacement.
2
Seal Identification
We identify the correct seal profile and size to match your specific window or door system.
3
Professional Fitting
Old seals are removed, channels cleaned, and new EPDM rubber seals press-fitted for a perfect barrier.
4
Draught Test
We check every sealed opening to confirm the draught and water barrier is fully restored.
Customer Reviews
Customer Testimonial
Southampton
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Patsy Achilles
Kyle has been amazing. Two new windows fitted with no mess. These are really good quality.
Customer Testimonial
Eastleigh
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Andrew Dixon
First rate service. Good price. Good communication. Polite and effective. Got the job done well.
Customer Testimonial
Portsmouth
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Gail Johnston
Lovely chaps, polite, helpful, quickly fixed shattered patio door
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Andrew Heppleston
Third time I have been in need of their services, - punctual, friendly and efficient, highly recommended!
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Nick and Sandra Clothier
Great communication. Paul was very thorough and dealt with our sticking patio doors. Although he came a little later than arranged we were kept fully informed and were able to track his journey. Very friendly. Pleased with the price of the work.
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Jay-Lee Saunders
Had a new sliding patio door fitted and new glass in our garage back door. All fitted beautifully by the team and all within 2 hours. Our old doors and glass were taken away and area cleaned up. Couldn't be happier with the results. Would recommend to anyone.
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James Harrington
Great service, work to a high standard and a competitive price. Great job all round, thank you.
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Dennis Wagstaffe
A big thank-you to the Restoration+ Glazing team, 1st class service from booking to completion. Very friendly staff highly recommend. Many thanks Den.
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David Thompson
Very professional team. They repaired our front door lock and replaced a cracked pane of glass. All done within an hour. Brilliant!
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Lisa Crawford
Cannot fault this company at all. From the initial quote to the finished job, everything was handled professionally. Highly recommend.
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Mark Stevens
Used Restoration Glazing for a complete house of new windows. The quality is superb and the fitters were friendly and tidy.
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Emma Richardson
Prompt and reliable service. Had two misted sealed units replaced and they look brand new. Great communication throughout.
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Paul Bennett
Top quality work. New composite front door fitted and it looks stunning. The guys were really helpful with colour choices too.
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Karen Phillips
Absolutely brilliant service. Fixed a problem that two other companies couldn't sort out. Fair price and lovely team.
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Robert Clarke
Had new UPVC windows throughout the house. The whole process was smooth from quote to installation. Highly recommended.
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Janet Morris
Wonderful service. They replaced our conservatory roof glass and it has made such a difference. Professional and courteous team.
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Chris Walker
Really impressed with the speed and quality of the work. Broken window handle replaced and door realigned in under an hour.
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Deborah Young
Used them twice now, once for misted glass and once for a new back door. Both times the service was exceptional. 5 stars!
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Neil Patterson
Very competitive pricing and top notch workmanship. Our new bay window is beautiful. Thank you Restoration Glazing!
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Michelle Taylor
Couldn't be happier! The team replaced all our fascias, soffits and guttering along with new windows. Transformed the house.
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Simon Rogers
Quick response to an emergency call out when our patio door glass smashed. Secured same day and replaced within the week.
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Angela Cooper
Excellent from start to finish. New French doors installed and they are gorgeous. The lads cleaned up after themselves too!
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Gary Hughes
Third time using this company and as always, brilliant job. This time for replacement sealed units. Always my first call for glazing work.
Rubber seals — gaskets, weather strips, glazing rubbers — are the silent failure point on every UPVC and aluminium window in Portsmouth. They look fine for years, then suddenly you've got draughts, condensation forming on the inside of the frame, water ingress in heavy rain, or rattling sashes in winds off the harbour. The salt-laden coastal air across PO4, PO5 and seafront PO1 accelerates rubber breakdown, meaning seals that should last 20 years often perish at 12-15 in homes near the seafront and the harbour.
Restoration Glazing replaces every type of weather seal and gasket across Portsmouth — internal and external glazing rubbers, frame-to-sash compression seals, threshold rubbers on patio doors, and the perimeter seals that go on hinged windows and doors. We carry stock of common profiles and can usually complete the job in a single visit, typically within 24-48 hours of your quote.
Most rubber seal jobs cost £40-£90 per window or door, depending on the run length, the profile type, and the disassembly required. We cover every Portsmouth postcode (PO1 to PO6) including Southsea, Eastney, Cosham, Paulsgrove and Portchester.
Areas We Cover in Portsmouth
We provide rubber seal repair across every Portsmouth postcode and the surrounding areas, including:
- Old Portsmouth & Centre — Old Portsmouth, Spinnaker, Gunwharf Quays, Buckland, Landport
- Southsea — Southsea, Eastney, Milton, East Southsea
- North Portsmouth — Cosham, Drayton, Farlington, Hilsea, Paulsgrove
- East Portsmouth — Copnor, Baffins, North End
- Surrounding — Portchester, Wymering, Anchorage Park
Common Rubber Seal Issues We See in Portsmouth Properties
- •Coastal seal degradation in Southsea, Eastney and Old Portsmouth — salt and UV combine to break down gasket compounds, causing brittleness and tearing well before the typical 20-year mark
- •Draughty windows in 1990s estates across Cosham, Paulsgrove and Drayton — first-generation UPVC seals reaching end-of-life, often noticeable as cold spots in winter
- •Patio door threshold leaks in ground-floor flats across Southsea and Eastney — bottom seals on sliding patios that have compressed and torn, letting water in during heavy rain or storms
- •Rattling sashes in seafront properties — perimeter seals that have lost their compression, allowing the sash to vibrate against the frame in high coastal winds
- •Compression seal failure on UPVC doors across Copnor and Baffins — doors no longer sealing against the frame when locked, causing draughts and reducing security feel
Frequently Asked Questions — Rubber Seal Repair Portsmouth
How much does rubber seal replacement cost in Portsmouth?
Most window or door seal replacements cost £40-£90 depending on the run length, profile, and disassembly required. Patio door bottom seals are typically £60-£90, standard window perimeter seals £40-£70.
How do I know if my window seals need replacing?
Common signs: noticeable draughts when windows are closed, condensation forming on the INSIDE of the frame (different from misted glass), water ingress in heavy rain, rattling in coastal winds, or visible cracking when you look closely.
Will replacing the seals fix my draughty windows?
Usually yes, if the frame and hardware are otherwise sound. Draughts are most often caused by perished perimeter seals or compression gaskets. If the frame itself has warped, we'll spot that during the visit and quote separately.
Can you do all my windows in one visit?
Yes — for properties where multiple seals have failed (typical in 25+ year-old estates), we'll survey the whole property and replace all the seals that need it. Most full-property reseal jobs across Portsmouth are completed in one day.
Ready for Rubber Seal Repair in Portsmouth?
Get your free, no-obligation quote today
