Surrey · England
Mastic man in Dorking
Sealant work for Dorking’s market-town cottages, Victorian streets and post-war estates, with country homes and hotels in the Surrey Hills around them.
- 20+ years’ experience
- ARBOMaster approved applicator
- One-year guarantee
Your local mastic man for Dorking
Dorking is a market town in the Mole Valley, ringed on three sides by the Surrey Hills, with Box Hill and Leith Hill close by. Its homes range from old cottages near the High Street to 1950s estates on the edge of town. Mr Mastic is based in Crawley and covers Dorking and the villages around it, from Westcott to Brockham.
Kitchens are a regular job here. Sealant behind a sink or along a worktop shrinks over time, and once water gets underneath, the edge of the worktop can swell. We remove the old bead completely and use a hygienic, colour-matched silicone. Our kitchen resealing page explains what we do, and the same careful approach goes into every bath, shower and window frame we seal.
Rose Hill, Victorian streets and post-war estates
A market has been held in Dorking since at least the 13th century, and the old centre has the narrow streets, inns and mixed building ages to show for it. Rose Hill, developed from 1831, was the town’s first planned residential estate. After the railway arrived in 1849 the town spread south and west, with artisans’ terraces in the 1890s and more building in the 1920s and 1930s after the Deepdene and Pippbrook estates were broken up.
In older houses, bathrooms were added long after they were built, often on timber floors that flex. Baths drop slightly when filled, and a rigid seal soon tears. Window frames set into old brick or render need a flexible sealant that can cope with uneven joints.
After the war came the Chart Downs estate, built between 1948 and 1952, and Goodwyns in the 1950s and 1960s. Homes on these estates have mostly been modernised with uPVC windows and newer bathrooms, and the sealant from those refits is now ageing. Where mould keeps returning, our guide to why sealant goes mouldy explains the usual causes.
Hills, sun and greensand
Dorking sits where the River Mole cuts through the North Downs, and the town is built on Lower Greensand. With the Downs and the greensand hills all around, houses on the higher roads are more exposed to wind and rain, and frames facing south over the valley get strong sun. Both dry out external mastic and make it brittle, so we use weatherproof, flexible sealants outside.
Country hotels, venues and town-centre businesses
With Box Hill, the Surrey Hills and Denbies Wine Estate on its doorstep, Dorking and the villages around it attract a lot of visitors, and the hotels, inns and venues that serve them have bathrooms in constant use. We can reseal room by room, so the rest of the building stays open. Our sealant for hotels page explains how we fit around bookings.
We also work for offices and units such as those on Dorking Business Park, for schools, and for landlords and letting agents across the town. In a let, a shower seal that has split can let water into the floor for weeks before anyone notices, so resealing between tenancies is a small job that can save a much bigger repair.
How a job runs
- Tell us about the job. A quick call or email with what needs sealing and where. Photos help us quote accurately.
- Agree the price. You get a clear quote up front, and we book a date that suits you.
- Cut out and prepare. All the old sealant comes out, and the joints are cleaned, treated and dried.
- Lay the new bead. We apply the right product for each joint and tool it to a clean, even line.
- 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 Dorking
- Bathroom & kitchen resealing: Bathroom and kitchen joints taken back to a clean, dry surface and finished with fresh anti-fungal silicone that won’t lift.
- Window & door mastic: Hardened, gappy mastic around frames, sills and French or patio doors cut out and renewed to keep draughts and rain out.
- Commercial & hotel sealant: Guest bathrooms, staff washrooms and kitchens in commercial buildings resealed in a planned order that keeps the site running.
- 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 sealant for service penetrations and frame gaps where it has been specified, applied to the 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: Early-failing sealant in new homes fixed properly, plus mastic packages and snagging for developers.
- Floor & skirting joints: Movement joints in tiled and concrete floors, and skirting gaps, sealed so they stay tidy and keep dirt out.
- 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: Exterior joints at gutters, fascias and soffits resealed to stop drips and staining down the wall.
- Sand mastic for sash & case windows: Traditional sand mastic for period windows and doors where a modern sealant would look out of place.
Why choose Mr Mastic in Dorking
The drive from Crawley to Dorking is an easy one, and we cover the Mole Valley villages on the same trips. Every job is done by people with 20+ years of resealing behind them, fully insured and ARBOMaster approved. We use Arbo and Everbuild sealants, and our 2,847+ completed projects have earned a 4.9-star Google rating from more than 180 five-star reviews. You’ll know the cost from a clear quote before we start, and every job is backed by a one-year guarantee.
Getting around Dorking
For trains, Dorking Deepdene station is closest to the centre. Local landmarks include Mesolithic Museum (3.9 miles south-west) and Betchworth Castle (1.5 miles east). Around the centre, our work takes us to homes, rentals and businesses close to St Paul's CofE (Aided) Primary School, The Ashcombe School, The Ashcombe School and Church of St Paul. For open space, Reigate Heath and Box Hill are close by.
What customers say
Rated 4.9 on Google from 180+ five-star reviews. Read the reviews on Google.
“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!”
“Professional mastic man service from start to finish. They assessed the work properly, gave a clear quote, and executed the job perfectly. Very satisfied with the results.”
“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.”
Areas of Dorking we cover
Choose your part of town for local details, or call 07833 053749 or email us and tell us your postcode.
- Betchworth
- Box Hill
- Brockham
- Mickleham
- Mid Holmwood
- North Holmwood
- Pixham
- South Holmwood
- Strood Green
- Westcott
- Westhumble
Also near Dorking
Questions we’re asked in Dorking
Do you cover the villages around Dorking?
Yes. We cover Dorking and the surrounding Mole Valley villages, including Westcott, Brockham and Mickleham.
My worktop edge is swelling by the sink. Is it the sealant?
Very often. Once the bead behind the sink shrinks or splits, water gets underneath. We cut it out and reseal with a hygienic silicone.
Can you reseal a bath in an old cottage with uneven walls?
Yes. We use a flexible sanitary silicone, sized to the gap, and fill the bath before sealing so the bead copes with movement.
Do you work for hotels and wedding venues?
Yes. We can reseal room by room and arrange visits around bookings and events.
Do you seal around windows on post-war homes like Chart Downs or Goodwyns?
Yes. We remove hardened mastic around uPVC and timber frames and apply a flexible, weatherproof sealant.
Do you use the same sealant inside and out?
No. Sanitary silicone goes in bathrooms and kitchens, and a weatherproof sealant suited to the frame goes outside.