Windsor expansion joint sealing
Sealant work in Windsor for main contractors, managing agents and facilities managers: expansion and movement joint sealing in walls, decks and floors, quoted at a fixed price.
- Debris jammed in movement joints
- Expansion joints split through the centre of the bead
- Arrises breaking up along floor joints
Expansion joint sealing for businesses in Windsor
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Why deal with it now?
Spot repairs can be useful on a tight budget. The remaining sealant is often close to failing too. Where it helps, we quote both options. In Windsor, as anywhere, the simplest time to fix a failed joint is before it leaks. Once water gets in, there’s drying out and making good as well.
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote and we’ll explain how it’s made up.
Why appoint us
- Failed material removed, not covered up
- Clear, fixed quotes
- Work to your specification and the manufacturer’s guidance
- Matching to RAL references, product permitting
Take a look at what affects the cost and our accreditations and insurance.
About our expansion joint sealing in Windsor
Every structure moves a little, all the time: they expand in the heat, shrink as they dry, and shift under load. Movement joints are where that movement is absorbed. We seal and reseal movement joints in walls, panels, decks and floors. We work on cladding panel joints, brickwork movement joints and blockwork control joints, and the failures we are asked to look at most are layers of sealant in a movement joint and spalled or broken joint edges in floors and decks. Whoever orders the work in Windsor, the brief is normally the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Car parks and yards in towns like Windsor take tyre loads and, in winter, de-icing salt. Resealing before the edges break up is far less disruptive than repairing them later.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.
- Place
- Windsor (SL4)
- Wider area
- Windsor and Maidenhead
- Guarantee
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Aftercare for building managers
Cleaning and maintenance staff play a part too. Pass these on to them:
- Treat a small split as a warning, not a cosmetic issue
- Keep stones and debris out of open joint lines
- Inspect exposed joints once the cold weather has passed
- Plan racking layouts so feet don’t land on a joint
Keep wheels, feet and water off new joints until the sealant has cured. The time varies with product, conditions and joint depth. Barriers left in place until then protect the finish.
Rain gets into walls through torn brick and block movement joints. It can surface inside as damp a long way from the joint by which time the joint has been open for a while. Resealing promptly prevents internal damage.
Common problems we fix in Windsor
The edges of the material can fail rather than the sealant. Weak or crumbling concrete, brick or render edges give the sealant nothing sound to grip so edge repair has to come before resealing.
Most enquiries start with one or more of the following:
- Joints packed with grit and debris
- Water dripping through deck or ramp joints
- Sealant pulling off the joint face
- Damp inside where a wall movement joint has failed
A campus such as Royal Holloway University (to the south-east of Windsor) has long runs of movement joint in its buildings, decks and paving.
What your quote should include
- Whether primer will be used where the manufacturer specifies it
- Who will actually carry out the work
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Health and safety accreditation such as CHAS
Commercial clients in Windsor
Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so the building keeps working while we do.
Warehouse floors and decks around Windsor
Windsor lies roughly 23 miles out from central London. Warehousing clusters around the motorways that ring and radiate from London, and their floor joints take forklift and pallet-truck traffic all day. Windsor is in the South East, one of the UK’s drier regions. Outside joints in yards and car parks still have to be dry before sealing, while winter salting gets into any joint left open.
Business parks such as Portland Business Park, 2.3 miles east of Windsor, have car parks, paved areas and long brick and panel elevations, all with movement joints. In a school such as St Edward's Catholic First School, movement joints in brick, block and hall floors tend to be forgotten until they leak.
Windsor is about 3 miles south of Slough, in Windsor and Maidenhead. We cover Windsor and the rest of Windsor and Maidenhead, with the same fixed quotes and 12-month guarantee as everywhere else. Our Windsor and Maidenhead coverage takes in 60 places, from busy centres to rural villages. Sites around Reading have their own page, roughly 15 miles from Windsor.
We cover the SL4 postcode districts. Among the streets we cover are Athlone Square, Leigh Square and Furness Square. Access to Windsor is via the A308 and A332 among other routes. If your building is just outside Windsor, we cover Clewer (1 mile north), Dedworth (1 mile west), Boveney (1 mile north-west), Eton Wick (1 mile north) and Oakley Green (1 mile west). Nearby towns on our patch include Maidenhead (5 miles north-west), Boyn Hill (5 miles north-west), Cookham (7 miles north-west), Furze Platt (6 miles north-west), Broomhall (6 miles south) and South Ascot (6 miles south). Among the larger centres in Windsor and Maidenhead is Windsor, and we take on movement joints for its commercial and public buildings.
Local landmarks in Windsor
Around Windsor, our work takes us to commercial buildings near The Prince Albert pub, Windsor Girls' School and Sutherland Grange, among other places. Windsor’s nearest station is Windsor & Eton Central station, about 1 mile north-east. A little further out are Berkshire Yeomanry Museum (1 mile south-east) and Windsor Castle (1.3 miles east). Green spaces nearby include Bray Pit and Taplow Lake.
Windsor: questions and answers
Is hospital work, at somewhere like King Edward VII Hospital, something you do?
Yes, hospitals are one of the sectors we cover. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Do you cover business parks and estates near Windsor, such as Portland Business Park?
Yes, sites like Portland Business Park are within our area, along with the rest of Windsor. Photos and a short description are enough for a first look.
Is it fine to apply new sealant on top of old?
No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
Do the joint edges need to be sound before sealing?
The edges have to be sound. If they’re damaged, we will say so before any sealing so you are not paying for a bead that won’t hold.
When is resealing likely to be due?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
What sealant do you use in movement joints?
The right product depends on the joint. Low-modulus neutral-cure silicone suits many facade joints, while polyurethane is common in trafficked floor and deck joints.
Do you guarantee expansion joint work?
Each job is backed by a 12-month guarantee on the workmanship. The guarantee covers how we sealed, not damage caused afterwards.
What we can’t put right
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Proprietary pre-formed expansion joint systems
- Cracking or settlement that calls for an engineer’s assessment
- A joint that has to be widened or re-detailed before it can work
If in doubt, give us a call on 01277 525 020 or use the quote form and we will say what we think.
Surfaces we seal
- Precast concrete panel joints
- Brickwork movement joints
- Cladding panel joints
- Car park decks and ramps
- Blockwork control joints
- Podiums and floor movement joints
Diagnose, treat, sign off
Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. For a town like Windsor, we try to group jobs for the same client into one visit. Tell us when the building is open and we’ll plan to suit.
- First the joints are inspected, widths measured and the type of failure noted.
- A fixed quote names the sealant we propose and its movement class.
- Where areas have to stay open, we agree a phased sequence before starting.
- We strip the old sealant or filler and prepare each face until it’s sound and dry.
- Depth is controlled with backing, the faces are primed where the maker calls for it, then the bead is laid and tooled.
- Finished joints are inspected, the cure time confirmed and the 12-month guarantee applies.
Preparing the site
- Confirm the product named in the specification
- Make sure the joints can be reached
- Tell us which areas need to stay in use
Request a quote
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or call the office on 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.