
Mastic contractors in Old Windsor
Construction mastic for Old Windsor, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Sealant knocked or painted over by other trades
- Old sealant on a refurbishment that needs stripping before new work
- Perimeter gaps outside the sealant’s range
Construction mastic across Old Windsor
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Maintenance after handover
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. We suggest:
- Put any product change through the designer first
- Ask cleaners to use soft cloths around fresh sealant
- Check frame gaps are within the sealant’s range before sealing
- Plan external elevations with the weather in mind
Our 12-month guarantee covers the workmanship from sign-off. Damage by others isn’t a workmanship fault, so protecting sealed areas matters.
Leaving the mastic snag list to the end squeezes everyone. Clearing snags area by area spreads the work out, and avoids a rush.
Construction mastic for commercial buildings in Old Windsor
A typical mastic package covers more than window perimeters: frame perimeters inside and out, caulking to trims and boards where the specification calls for it, sanitary silicone, kitchens, and the final snag list. Splitting those between trades often leaves gaps in responsibility and gives you a consistent finish across the job. The enquiries we see most involve caulk cracking where joints are moving more than expected and a mastic package split between trades with no clear owner, across floor and skirting junctions, cladding and panel joints and internal decorators’ caulk. One point of contact handles commercial sealant work in Old Windsor from the first photos to the final walk-round, whether it’s one building or several.
For a contractor on a smaller site near Old Windsor, one mastic visit at the right stage saves return trips. Tell us when scaffold comes down and when decoration finishes, and we’ll plan around those stages.
What our 12-month guarantee covers is the way we did the job: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Location
- Old Windsor (SL4)
- Region
- Windsor and Maidenhead
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026

New build and refits around Old Windsor
Old Windsor has plenty of hotels close by, all within 2 miles. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades. Old Windsor is about 21 miles from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, which keeps mastic packages in demand.
For contractors at a school such as King's Court First School, sealing has to be finished before term starts. Extensions at sites like Princess Margaret Hospital (1.7 miles north-west of Old Windsor) usually sit beside working departments, and the mastic follows strict access rules. For contractors refurbishing units at places like Portland Business Park (1.7 miles north of Old Windsor), the mastic covers cladding panels, roller-door and window perimeters.
Old Windsor is about 2 miles north-west of Egham, in Windsor and Maidenhead. Our applicators travel to Old Windsor for work on mastic packages. Our Windsor and Maidenhead coverage takes in 60 places. We also cover Reading, around 17 miles from Old Windsor.
We cover the SL4 postcode districts for mastic packages. Among the streets we cover are Church Road, Parker Gardens and Gregory Drive. You’ll find Old Windsor on or near the B3021. 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).
Around Old Windsor
Around Old Windsor, our work takes us to commercial buildings near St John's Beaumont School, Windsor Great Park and The Fox And Castle Public House. For rail, the closest station 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). Not far away are St Ann's Hill and Virginia Water Lake.
Site staff or a sealant specialist?
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.
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
Cost factors for mastic packages
Before we quote, we look at:
- Distance, for remote addresses
- The product specified
- Removal of failed or old sealant
- Site requirements such as inductions and permits
We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we will price your job on its own details.
Details that help us quote
However big the job, these details speed things up:
- Asbestos survey details if the building is older
- When you need the work done
- The site address and postcode
- Anything awkward about access or site hours
To get a fixed quote, give us a call on 01277 525 020 or email drawings and photos with the site address and an outline of the work. You can also send details through our quote form.
Questions about Old Windsor
Does your area include sites such as Portland Business Park, near Old Windsor?
Yes. We cover Old Windsor and the area around it, including industrial estates, business parks and retail parks such as Portland Business Park. Photos and a short description are enough for a first look.
Can work at a site such as Royal Holloway University fit around teaching?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
How long will the new sealant last?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
Which sealant will you use?
A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.
Do you take on small jobs?
We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.
Can the building stay open while you work?
In the majority of cases, yes. We phase the work so most of the building stays in use, with each area protected and signed.
How do you work with the site programme?
Our work is sequenced around the programme. Each plot, floor or elevation is sealed when it’s ready and we tell you if something stops an area being sealed.
Our process
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. With the paperwork done, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. What matters most for a job in Old Windsor is a clear list of what needs doing. A fixed quote follows.
- Drawings, specification and programme come to us.
- Quantities are measured and a fixed price returned.
- We agree with the site team which areas come first.
- Plots or floors are sealed as they’re handed over.
- Joints are prepared, backed and sealed to the specification.
- Snags are cleared and the package signed off with our 12-month guarantee.
Getting the site ready
- Let us know about inductions and permits
- Clear stock, furniture or equipment away from the joints
- Tell us which areas need to stay in use
Quotes
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, give us a call on 01277 525 020 or email drawings and photos.
Advice
Also near Old Windsor
Also in Old Windsor
Work for main contractors and building owners
Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Old Windsor. Several sites can go on one quote, so there’s one set of paperwork to deal with.
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Old Windsor can sit alongside others in a wider programme.
What the job involves on each surface
Bathrooms, en suites and washrooms
Across a block of flats or a hotel, sanitary sealing is repeated in every room. A single team keeps the standard consistent following the programme.
Snagging before handover
The last pass before handover is where mastic snags are cleared. Snags are cleared room by room and damaged joints are redone rather than patched.