Slough · England
Mastic man in Slough
Resealing and mastic work for Slough homes, flats and workplaces, from Langley and Cippenham to Britwell, Upton and the trading estate.
- 20+ years’ experience
- ARBOMaster approved applicator
- One-year guarantee
Your local mastic man for Slough
Slough is a town of contrasts. Old villages such as Upton, Chalvey, Cippenham, Langley and Wexham have been joined together by twentieth-century housing, while the town centre has been reshaped by regeneration, with The Curve and a new bus station. Between them sits one of the largest industrial estates in Europe. All of it has bathrooms, kitchens, windows and joints that need sealing, and Mr Mastic covers the whole town from our base in Crawley.
We reseal baths, showers, basins and worktops, renew window and door mastic, and seal external and movement joints on commercial buildings. The method stays the same whatever the property: every trace of the old bead is cut out, the joint is cleaned and dried, mould is treated, and the right sealant goes on at the right depth. If you’re wondering how long a reseal should last before it needs doing again, our guide to how long silicone sealant lasts gives realistic figures.
Old village cores, post-war estates and new town-centre flats
After the Second World War, several large housing developments went up in Slough for families leaving war-damaged London, and those estates still make up a big share of the town’s homes. Britwell, in the north-west, has since been partly regenerated, with a run-down block of flats replaced by new homes. Many of these post-war houses are now on their third or fourth bathroom, and we often find a newer bath set into an older floor that flexes, so the seal tears along the back edge.
Recent decades have added a lot more. In Langley, the former Hawker and then Ford factory site was cleared after 1997 and redeveloped for housing, offices and warehousing. In Cippenham, farmland has been built over for the Windsor Meadows and Cedar Parks developments. The former Thames Valley University campus has gone for housing, and the Heart of Slough regeneration has reshaped the centre. Newer homes like these tend to have builder-grade sealant that shrinks away as the building dries out and settles.
The town also keeps some much older buildings, with 96 listed in all, including the almshouses in Langley and the old cores of Upton and Chalvey. Around older timber frames, we take care to choose a sealant that suits the material rather than simply the cheapest bead. For homes from the last few years, our new-build sealant snagging guide is worth a read.

Flats, managing agents and busy main roads
Plenty of Slough’s homes are flats, from older blocks to newer apartments in and around the centre. In a block, a shower seal that lets go rarely shows in your own bathroom first; it usually appears as a stain on the ceiling of the flat underneath. We can talk to your managing agent or concierge about access and parking, bring tools and materials up in one trip, and leave the bathroom clean and ready to cure.
Outside, many Slough homes sit close to busy routes such as the A4 and near the M4, and traffic grime clings to tacky, ageing mastic around frames and sills. Joints on brick and render move a little through the year, so where frames meet masonry we use a flexible, weatherproof sealant, with backing rod where the gap is deep, rather than a stiff filler that cracks within a season.
The trading estate, hospital neighbours and landlords
Slough Trading Estate started life in 1918 as an army motor repair depot and now holds around 400 businesses. Offices, warehouses and production units all have washrooms, staff kitchens, expansion joints and glazing that need sealing. We can work out of hours so facilities stay open during the working day, and our commercial sealant page explains what we cover.
Wexham Park Hospital, run by Frimley Health NHS Foundation Trust, brings care homes, clinics and staff housing to the streets around it, and those buildings need hygienic, anti-fungal sealant in bathrooms and sluice rooms. Slough also has a large rented sector, and we reseal between tenancies for landlords and letting agents.
From first call to finished joint
- Call or email. Tell us what needs doing, where it is and anything about access. Photos by email help.
- Agree the price. You get a clear quote up front, and we book a date that suits you.
- Preparation first. Old sealant out completely, surfaces cleaned, mould treated and the joint left dry.
- Lay the new bead. We apply the right product for each joint and tool it to a clean, even line.
- Cure and guarantee. We tell you when it can be used, and every job has our one-year guarantee.
What we do in Slough
- Bathroom & kitchen resealing: Every joint in the bathroom and kitchen, from the bath edge to the worktop, stripped back and resealed with anti-fungal silicone.
- Window & door mastic: Cracked or shrunken mastic around window and door frames, sills and patio doors replaced with a weatherproof sealant.
- Commercial & hotel sealant: Hotels, offices, washrooms and welfare areas resealed room by room, with out-of-hours working possible to arrange.
- Remedial sealant & repairs: Leaks and lifting beads from earlier sealant jobs put right, starting with finding out why they failed.
- Fire-rated sealant: Fire-rated and intumescent sealant around gaps, frames and service penetrations, to the product’s tested details.
- External & façade joints: Expansion joints in brick, render and cladding cut out and renewed at the right depth so they can move without splitting.
- New-build mastic & snagging: Failed builder sealant in new homes put right, and plot mastic for developers.
- Floor & skirting joints: Floor and skirting joints in homes, shops and warehouses sealed neatly and to the right depth.
- Regrouting: Shower and splashback grout replaced where it has cracked or stained, with silicone in the movement joints.
- Glazing & conservatory sealant: Glazing joints on conservatories, roof lanterns and screens renewed with a sealant suited to glass and frames.
- Gutter, fascia & soffit sealing: Dripping gutter joints and end caps, and gaps at fascias and soffits, sealed with weatherproof exterior sealant.
- Sand mastic for sash & case windows: Traditional sand mastic for period windows and doors where a modern sealant would look out of place.
Why Mr Mastic in Slough
Slough is an easy trip from Crawley up the M25 and along the M4. Each job is done by someone with more than 20 years in the trade, and we are fully insured and ARBOMaster approved. We work with Arbo and Everbuild sealants, chosen joint by joint. Over 2,847 projects and a 4.9-star Google rating, built on 180+ five-star reviews, tell you how customers have found us. You’ll have a clear quote before any old sealant comes out, and the finished work is covered by a one-year guarantee.
Landmarks near Slough
For trains, Slough station is closest to the centre. Well-known places nearby include The History On Wheels Museum (1.3 miles south-west) and Windsor Castle (2.1 miles south). Around the centre, our work takes us to homes, rentals and businesses close to The Godolphin Junior Academy, Herschel Grammar School, Westgate School and St Michael and All Angels. For open space, Burnham Beeches and Taplow Lake are close by.
What customers say
Rated 4.9 on Google from 180+ five-star reviews. Read the reviews on Google.
“Harper Drive in Maidenbower — kitchen worktop had been leaking behind for a while. Came out the next day, sorted it properly. Really tidy job.”
“Called for a bathroom reseal and the mastic man showed up on time with all the right equipment. Brilliant attention to detail. The sealant looks perfect and they kept everything tidy.”
“We had old mastic that needed replacing throughout our kitchen and bathrooms. The mastic man professional was knowledgeable, quoted fairly, and delivered excellent quality work. Highly recommend!”
Neighbourhoods we cover in Slough
Select your area for more local detail, or call 07833 053749 or email us with your postcode.
Towns near Slough
Your questions about mastic work in Slough
Do you cover all of Slough?
Yes. We cover the whole borough, including Langley, Cippenham, Britwell, Chalvey, Upton, Wexham, Salt Hill and Colnbrook, plus nearby Burnham, Stoke Poges, Farnham Royal and Datchet.
I’ve bought a flat in the town centre and the shower seal has already split. Is that unusual?
Not at all. New buildings settle and dry out in their first year or two, and the sealant often can’t keep up. We cut it out and reseal with a flexible sanitary silicone.
Can you work on the trading estate outside office hours?
Yes. Early-morning or evening working can be arranged for commercial jobs so staff facilities aren’t out of use.
Do you reseal for care homes near Wexham Park?
Yes. We use anti-fungal sanitary silicone suitable for care settings and can work around residents’ routines.
My bath in a 1950s house keeps pulling away from the wall. Why?
Older floors often flex when a bath is filled. We reseal with the bath full of water so the bead is laid at its heaviest and can move with it.
Can you deal with my managing agent directly?
Yes. We’re happy to arrange access, keys and parking with your agent and send the quote to whoever needs it.
Will you seal over the old silicone to save time?
No. New sealant doesn’t bond to old sealant, so we always remove the old bead fully first.
