Expansion Joint Sealing in Old Windsor
We carry out expansion and movement joint sealing in walls, decks and floors in Old Windsor and the surrounding area. Send photographs or drawings for a fixed quote.
- Arrises breaking up along floor joints
- Rain penetration at brick or block movement joints
- New sealant over old, now failing
Need expansion joint sealing in Old Windsor?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
How we handle expansion joint sealing in Old Windsor
Buildings and slabs are never completely still: they expand in the heat, shrink as they dry, and shift under load. Expansion and movement joints are built in so the structure can move without cracking and the seal across each one keeps out water and grit. Mastic Doctor reseals movement joints in brickwork, blockwork, concrete, cladding and floors. If you are dealing with joints packed with grit and debris and expansion joints split through the centre of the bead, we can put it right. Whoever orders the work in Old Windsor, the brief is normally the same: a clear scope, tidy work and joints that don’t fail again.
Rural business units around smaller places such as Old Windsor often have new slabs laid inside older buildings. Joints in those slabs need a product suited to whatever runs over them, from pallet trucks to foot traffic.
The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Old Windsor (SL4)
- Wider area
- Windsor and Maidenhead
- Guarantee
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Looking after the joints
To get the most from the new sealant:
- Include every elevation and deck joint in periodic inspections
- Keep traffic off new joints until the cure time is up
- Look over external and deck joints after a hard winter
- Keep product details with the building records for the next reseal
Fresh joint sealant needs its full cure time before it takes traffic or water. The time varies with product, conditions and joint depth, and we confirm it for each area before we leave. Barriers left in place until then protect the finish.
An open joint fills with grit, and a joint full of grit can’t close. The edges then take the pressure and start to spall. A sound seal keeps the joint working.
Should maintenance staff do it?
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Also near Old Windsor
Other services in Old Windsor
Expansion joint sealing in Old Windsor: the local picture
The 3 miles around Old Windsor take in at least three named trading estates, business parks or retail parks. Sites like these are full of saw-cut floor joints, yard slabs and car park joints. Old Windsor lies roughly 21 miles out from central London. The roads out of London are lined with trade parks and distribution sheds; their floors carry heavy traffic every shift.
For an estate such as Princess Margaret Hospital, 1.7 miles to the north-west of Old Windsor, the joints in ramps, decks and long building elevations all need attention over time. Schools like King's Court First School often have long brick elevations with movement joints that age quietly.
Old Windsor is about 2 miles north-west of Egham, in Windsor and Maidenhead. Across the SL4 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Old Windsor is one of 60 places in Windsor and Maidenhead on our list for movement joints. Reading is covered too, some 17 miles away.
Anyone looking for expansion joint sealing in SL4 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Buildings on Church Road, Parker Gardens and Gregory Drive are within our area. Being close to the B3021, Old Windsor is easy to get to with materials and equipment. Close to Old Windsor, our area also takes in Wraysbury (1 mile east), Sunnymeads (1 mile north-east), Bishopsgate (1 mile south), Datchet (2 miles north) and Englefield Green (2 miles south). Bigger towns within reach include Maidenhead (8 miles north-west), Windsor (3 miles north-west), Boyn Hill (8 miles north-west), Cookham (9 miles north-west), Furze Platt (9 miles north-west) and Dedworth (3 miles north-west).
Local landmarks in Old Windsor
We work on buildings around St John's Beaumont School, Windsor Great Park and The Fox And Castle Public House, among other places. The closest station to Old Windsor is Sunnymeads station, about 1.3 miles north-east of the centre. Other landmarks nearby include Windsor Castle (2.1 miles north-west) and Berkshire Yeomanry Museum (1.6 miles north-west). Green spaces nearby include St Ann's Hill and Virginia Water Lake.
Why it’s worth doing now in Old Windsor
Patching the worst lengths of a joint can make sense short term. But if the rest of the run is the same age and product, it’s normally not far behind, and a second visit means paying for access again. Where it helps, we quote both options. For buildings in places like Old Windsor, one well-planned visit beats several small ones, so it’s worth dealing with every failing joint at once.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Why appoint us
- Colours confirmed for the specified product
- Old sealant cut out, never sealed over
- Work carried out by CSCS-carded applicators
- Workmanship guaranteed for 12 months
See how commercial sealant jobs are priced or our accreditations.
For managing agents and facilities managers
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
How a job runs
In a busy building, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed, then reopened once the sealant allows before we move to the next. For a job in Old Windsor, the main thing is a clear picture of the work, so send photographs of each area. A fixed quote follows.
- We look at the joints, their width and how they’ve failed.
- A fixed quote follows, naming the sealant and its movement class.
- The failed seal is removed and both faces are cleaned until sound and dry, flagging any broken edges that need repair before sealing.
- Closed-cell backing rod is set to depth, or bond-breaker tape in shallow joints.
- After any primer the maker requires, the bead is applied and tooled so it grips two sides only.
- Each joint is inspected and handed over with our 12-month guarantee.
Getting the site ready
- Explain the parking and delivery arrangements
- Send asbestos survey details if the building is pre-2000
- Make sure the joints can be reached
Get a fixed quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.
Advice
Questions we’re asked in Old Windsor
Will you take on work at estates like Portland Business Park, close to Old Windsor?
Yes. Our area takes in Old Windsor and its surroundings, with estates and business parks such as Portland Business Park included. Photos and a short description are enough for a first look.
Can you work on a hospital site such as Princess Margaret Hospital?
Yes, hospitals are one of the sectors we cover. Work is phased so departments keep running, under the site’s own rules.
What’s the difference between an expansion joint and a movement joint?
They’re closely related. Both let materials grow and shrink with temperature, moisture and load, and the seal across it keeps water and debris out.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and the quote will be based on it.
Can staff carry on working while you’re here?
Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.
Can weather delay the job?
It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
Is Old Windsor in your area?
Yes. Sites across Old Windsor are covered, and the same phone number covers every area.
Do you need expansion joint sealing in Old Windsor?
Most movement joint failures come down to the joint stretching further than the sealant can take. Cohesive failure, a split through the centre, typically means the joint or product wasn’t right for the movement. The same product in the same joint tends to fail again, so we check width and movement before quoting.
Look out for the following:
- Layers of sealant in a movement joint
- Torn sealant in brick or block movement joints
- Chipped joint edges on forklift routes
- Car park joints leaking onto vehicles below
Across sites such as The Green Business Centre, 2.6 miles south-east of Old Windsor, floor and movement joints can be sealed in phases so units keep working.
Before you book anyone
- Will RAMS and insurance details be available?
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Is the sealant right for the movement and the substrate?
- Their plan for phasing and protecting the area