Hampshire · England
Mastic man in Whiteley
Sealant snagging and resealing for Whiteley’s planned estates, from the first late-1980s homes to the new houses still going up in North Whiteley.
- Anti-fungal silicone as standard
- 20+ years in the trade
- Guaranteed for a year
Your local mastic man for Whiteley
Whiteley is one of the youngest communities in Hampshire. The first houses were finished in the late 1980s, and building has carried on in waves ever since, with North Whiteley still under construction. Almost every home here has been built in the last forty years, which shapes the sealant work we do. Mr Mastic covers Whiteley from our base in Crawley, along with Park Gate, Swanwick, Botley and Curdridge.
In the older parts of the town, original bathrooms and windows are reaching the end of their sealant’s life. In the newer streets, developer sealant is cracking as houses settle. Either way, we remove the old bead completely, clean and dry the joint, and reseal with products suited to the surface. Our guide to new-build sealant snagging is a good place to start if your home is recent.
A planned town built in stages
Whiteley was planned on farmland between Fareham and Southampton, close to Junction 9 of the M27. Work started on Solent Business Park in the mid-1980s, the first homes followed in the late 1980s, and building slowed after the mid-1990s property crash before picking up again from 1996. The town was laid out around woodland copses, including Round Coppice, Hill Coppice and Gull Coppice, so many homes back onto trees.
Those first houses are now well over thirty years old. Bathrooms and kitchens have often been refitted once already, and uPVC windows and patio doors from the original build have perimeter mastic that has hardened, shrunk and blackened. On the later streets, ensuites and family bathrooms fitted around 2000 to 2010 are showing tired seals, split corners and mould.
North Whiteley is the newest chapter. Winchester’s district council approved outline plans for 3,500 homes there in 2018, with completion expected around 2027. New homes always settle, and showers and baths in their first year or two are where builder sealant tends to fail first.
Owner-occupied homes, copses and new estates
More than four in five Whiteley homes are owner-occupied, and the typical job is a family bathroom, an ensuite or a kitchen. Homes beside the copses sit in more shade, and external mastic around frames and doors there stays damp for longer and can grow algae. We cut it out, clean back to sound surfaces and use a durable weatherproof sealant.
For North Whiteley buyers, check your developer’s warranty first. Where it no longer covers sealant, or the snag list is moving slowly, we can reseal trays, baths, worktops and window frames properly, priming surfaces where needed so the new joint bonds and lasts.
Solent Business Park and Whiteley Shopping
Solent Business Park is home to large offices, including the headquarters of NATS and the offices and studios of ITV Meridian, and the Solent Hotel and Spa sits nearby. Office washrooms, staff showers and hotel bathrooms all get heavy use, and we can work out of hours or room by room. Our commercial sealant page explains how we plan that work.
Whiteley Shopping, the open-air centre, has shops plus a leisure complex with a cinema and restaurants that opened in 2015. Kitchens and washrooms there need hygienic, sound joints, and we can quote for several units or areas at once.
What happens when you book
- Get in touch. Call or email with the job, your postcode and a few photos if you have them.
- Quote and booking. We quote clearly before anything starts and fix a day that works for you.
- Preparation first. Old sealant out completely, surfaces cleaned, mould treated and the joint left dry.
- Neat new sealant. Each joint gets the sealant that suits it, laid and smoothed to a tidy finish.
- Guaranteed work. You’ll know the cure time before we leave, and every job comes with a one-year guarantee.
Jobs we take on in Whiteley
- Bathroom & kitchen resealing: Mouldy or split sealant around baths, shower trays, basins and sinks removed completely and replaced with a neat, hygienic bead.
- Window & door mastic: Frame perimeters inside and out resealed with flexible, colour-matched sealant, with backing rod where the gap is deep.
- Commercial & hotel sealant: Sealant programmes for offices, hotels, care settings and schools, with early or late working where it helps.
- Remedial sealant & repairs: Leaks and lifting beads from earlier sealant jobs put right, starting with finding out why they failed.
- Fire-rated sealant: Gaps in fire-separating walls and floors sealed with fire-rated products, following the tested details for each one.
- External & façade joints: Split or perished joints in walls and cladding replaced with exterior sealant designed to stretch with the building.
- New-build mastic & snagging: Snagging sealant for new homes and plot-by-plot mastic for builders and developers.
- Floor & skirting joints: Skirting-to-floor gaps, tiled floor movement joints and concrete floor joints sealed with the right product.
- Regrouting: Tired or mouldy grout raked out and renewed, and the internal corners finished in flexible silicone.
- Glazing & conservatory sealant: Conservatory, rooflight, glass panel and shower screen joints resealed with glazing silicone.
- Gutter, fascia & soffit sealing: Leaking gutter joints, end caps, fascia and soffit joints resealed with exterior sealant.
- Sand mastic for sash & case windows: Traditional burnt sand mastic renewed around sash and case windows and doors in stone and brick.
Why Mr Mastic in Whiteley
Whiteley is a simple journey along the M27 for us from Crawley. On arrival, you get an ARBOMaster approved applicator with over 20 years in the trade, full insurance and sealants from Arbo and Everbuild. Behind that are 2,847+ completed projects and a 4.9-star Google score from 180+ five-star reviews. We put a clear quote in front of you before starting, and our one-year guarantee stands behind every finished joint.
Getting around Whiteley
From the centre, the nearest railway station is Swanwick station. Well-known places nearby include Bursledon Brickworks Industrial Museum (1.6 miles west) and St Andrew's Castle (3.5 miles south-west). Closer in, we work on homes, rented flats and businesses near Whiteley Primary School, Brookfield Community School and Language College and St Margaret Mary. Nearby green spaces include Swanwick Lakes.
What customers say
Rated 4.9 on Google from 180+ five-star reviews. Read the reviews on Google.
“1950s terrace on Crossways — bath had black mould coming back constantly. Mr Mastic stripped it all back and did it properly. Bathroom looks brand new.”
“New build in Forge Wood — shower seal had failed after 16 months. Mr Mastic came out quickly, removed everything and did it properly. Perfect finish and no more leaks.”
“Harper Drive in Maidenbower — kitchen worktop had been leaking behind for a while. Came out the next day, sorted it properly. Really tidy job.”
Areas of Whiteley we cover
Pick your area for local details, or call 07833 053749 or email us with your postcode.
Also near Whiteley
Your questions about mastic work in Whiteley
Do you cover all of Whiteley?
Yes. We cover the whole town including North Whiteley, and nearby Park Gate, Swanwick, Botley and Curdridge.
I’ve just moved into North Whiteley and the ensuite sealant has cracked. What should I do?
Report it to your developer first if it’s still under warranty. If not, we can cut it out, prime the joint and reseal it.
My house was one of the first in Whiteley. Should the window mastic be replaced?
If it has hardened, cracked or pulled away from the brick, yes. We cut it out and use a flexible weatherproof sealant.
Do you work at Solent Business Park outside office hours?
Out-of-hours working can be arranged for commercial jobs, so washrooms are ready for the next working day.
Can you reseal hotel bathrooms without closing the whole floor?
Yes. We work room by room, so rooms go back into use as soon as the sealant has cured.
Why is the sealant by my back door going green?
Shade from nearby trees keeps it damp. We clean the frame, remove the old joint and fit a new weatherproof bead.
Is your work guaranteed?
Yes. Every job comes with our one-year guarantee.
Can you reseal around a kitchen island sink or worktop upstand?
Yes. We remove the old joint, clean and dry the surfaces and use a hygienic sanitary silicone, colour-matched to the worktop where you’d like.