Surrey · England

Mastic man in Cobham

Discreet resealing for Cobham’s large family homes, listed buildings in Church Cobham and country houses divided into apartments.

  • Fully insured
  • Arbo and Everbuild sealants
  • Clear quote before we start

Mastic and sealant work in Cobham

Your local mastic man for Cobham

Cobham stretches along the River Mole in Elmbridge, from the old village core at Church Cobham and the High Street to Street Cobham on the Portsmouth Road and Fairmile to the east, with Stoke d’Abernon and Downside on its southern edge. Mr Mastic covers the whole area from our base in Crawley, resealing bathrooms, wet rooms, kitchens and glazing, and replacing tired mastic around windows and doors.

Many Cobham bathrooms are finished in natural stone, large tiles and frameless glass, and the sealant line is one of the first things you see. We take old silicone out in full, prepare the surfaces carefully and choose a sealant and colour that suit the finish, so the joint looks right as well as keeping water out.

Detached houses, conservation streets and converted mansions

Cobham is mostly a place of detached and semi-detached homes. In the 2011 census, the centre and south of the village had over 1,150 detached houses and nearly 700 semis, with around 400 terraced houses and 500 flats. Many larger homes have been extended, with en-suites and wet rooms added well after the house was built.

At its heart is the Church Cobham Conservation Area, designated in 1973, which contains fourteen listed buildings, including Pyports, Church Stile House, Ham Manor and Cedar House. St Andrew’s Church, with its Norman tower, stands at the centre. The early 1900s brought rows of neat cottages, and the High Street was widened at its southern end in the 1960s. Several country houses have since been divided into apartments, among them Cobham Park, completed in 1873, and Painshill House.

Each brings different sealant work. In extended homes, it is often a walk-in shower or wet room whose seals have started to fail. In listed and conservation-area houses, it is the joint between old frames and brick or render. In converted mansions, it is compact bathrooms fitted into grand rooms, where any leak travels down through very old floors. Whatever the house, we protect floors and finishes, tidy up as we go and leave a clean, even line.

Mr Mastic applicator kneeling beside a white bath, sealing the joint where the bath meets beige wall tiles
Mr Mastic applicator kneeling beside a white bath, sealing the joint where the bath meets beige wall tiles
Map of Cobham © OpenStreetMap contributors

Frameless glass, wet rooms and apartments in historic houses

Frameless shower screens and large glazed panels need a different approach to a simple bath edge. The joint between glass and tile or stone must be clean, narrow and even, using a sealant that bonds to glass without staining natural stone. Our glazing sealant page covers this kind of work. In wet rooms, we check the joints at the floor and walls carefully, as that is where water most often gets through.

In the apartments carved out of Cobham Park, Painshill House and similar buildings, access may be through a shared hall or a managed estate. We can liaise with the management company about parking and entry, and we protect floors and stairways as we work.

Schools, the High Street and local employers

Cobham has a strong cluster of schools, including ACS Cobham International School, Reed’s School, Notre Dame School and Feltonfleet School, with changing rooms, boarding bathrooms and kitchens that see heavy use. Holiday and out-of-hours working can be arranged so resealing fits around term time.

The High Street and Church Street have shops, restaurants and offices, and Painshill Park, the restored 18th-century landscape garden, has visitor facilities nearby. For businesses like these, our commercial sealant service covers washrooms, kitchens and shop fronts. We also reseal for landlords and agents letting Cobham houses and flats.

How a job runs

  1. Tell us about the job. A quick call or email with what needs sealing and where. Photos help us quote accurately.
  2. Agree the price. You get a clear quote up front, and we book a date that suits you.
  3. Preparation first. Old sealant out completely, surfaces cleaned, mould treated and the joint left dry.
  4. Seal and finish. The right sealant for each joint is applied and tooled to a neat, even finish.
  5. Leave it to cure. We tell you how long to leave it before use, and the work carries our one-year guarantee.

Jobs we take on in Cobham

  • 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: 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: Failed, botched or over-sealed joints stripped out, the cause found and the joint resealed properly.
  • Fire-rated sealant: Intumescent and fire-rated joints around pipes, cables and frames, installed to the manufacturer’s tested specification.
  • 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: Glass-to-frame joints on conservatories, rooflights and shower screens cut out and resealed.
  • Gutter, fascia & soffit sealing: Gutter unions, outlets and fascia joints that leak in heavy rain cleaned and resealed.
  • Sand mastic for sash & case windows: Old sand mastic around sash windows and doors raked out and renewed with traditional burnt sand mastic.

What you get with Mr Mastic in Cobham

A careful, tidy finish matters in homes like these, and it is what we’re known for. Mr Mastic’s applicators have over 20 years’ experience, we are fully insured and ARBOMaster approved, and we use Arbo and Everbuild sealants suited to stone, glass and timber. With 2,847+ projects completed and a 4.9-star Google rating from more than 180 five-star reviews, we stand behind our work. You get a clear quote before we start and a one-year guarantee when we finish.

Getting around Cobham

The nearest station to the town centre is Cobham & Stoke Dabernon station. Well-known places nearby include Elmbridge Museum (3 miles north-east) and Chessington Castle Hill (4.9 miles east). Around the centre, our work takes us to homes, rentals and businesses close to St Andrew's CofE Primary School, Church of St Andrew, The Running Mare pub and West End Common. For open space, Jubilee Wood and Claremont Lake are close by.

What customers say

Rated 4.9 on Google from 180+ five-star reviews. Read the reviews on Google.

★★★★★
“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.”
David Parker, West Sussex
★★★★★
“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.”
Paul D., Crossways, Three Bridges
★★★★★
“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.”
Anna P., Forge Wood, Crawley
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job

Questions from Cobham

Do you cover all of Cobham?

Yes. We cover Church Cobham, Street Cobham, Fairmile and the High Street, as well as Stoke d’Abernon, Downside and Oxshott.

Can you reseal around frameless glass shower screens?

Yes. We use a sealant that bonds well to glass and suits the surrounding tile or stone, laid as a narrow, even joint.

Will silicone stain my marble or limestone?

Some sealants can mark natural stone, so we use products suited to stone and test where there is any doubt.

I live in an apartment in a converted country house. Can you get access?

Yes. We can arrange entry and parking with the management company and protect shared areas while we work.

My house is in the Church Cobham Conservation Area. Can you replace the window mastic?

Yes. We cut out failed mastic and choose a colour and finish to suit the frame and wall, keeping changes to a minimum.

Can you reseal school changing rooms during the holidays?

Yes. Out-of-hours and holiday working can be arranged for school and commercial jobs.

Can you reseal several bathrooms and a kitchen in one visit?

Usually, yes. We plan the order so you always have a bathroom you can use while the others cure.

How long does a wet room reseal take?

Most take a few hours, including removing the old sealant. We’ll tell you how long to leave it before using the room.

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