Essex · England

Mastic man in Thundersley

Bath, shower and kitchen resealing for Thundersley’s extended bungalows, family houses and hillside streets, from New Thundersley to Daws Heath.

  • 20+ years’ experience
  • ARBOMaster approved applicator
  • One-year guarantee

Resealing in Thundersley? Call for a quick quote

Mastic and sealant work in Thundersley

A lot of Thundersley homes have been added to over the years. A bungalow from the 1920s may now have a second storey, a new bathroom in the roof and a rear extension, and each of those changes leaves joints where new meets old. Those joints are where sealant tends to fail first. Mr Mastic covers Thundersley and the rest of Castle Point from our base in Crawley.

The bulk of our work here is resealing baths, showers, basins and kitchen worktops, and renewing mastic around windows, doors and conservatory frames. We never lay new silicone over old. The old bead is removed, the joint is treated, dried and checked for movement, and then sealed with a product that suits it. Our bath resealing page walks through each step.

Plotland bungalows that grew into a suburb

Much of Thundersley began as plotland. In New Thundersley, land was sold off in plots from 1897, and modest homes followed, such as the house on Manor Road built around 1925 that local historians describe as the last plotland dwelling left on that road. In the Tarpots area, Kents Hill Road was split into small plots in the 1920s, and in the 1940s and 1950s it was still lined with plotland bungalows with wooden verandas. The road was unmade as late as 1951.

Since then, many of those first bungalows have been demolished or extended into houses, and the gaps have been filled with family homes of every era. That gives Thundersley a very mixed housing stock, often on the same street: older bungalows, extended chalet homes, post-war houses and much newer rebuilds.

For sealant, the mix matters. Where an extension joins the original house, the two parts can move slightly differently, and mastic around new windows or along the junction may crack. Bathrooms fitted into lofts often sit on timber floors that flex, which tears a stiff bead. We use flexible products that allow for that movement, and where a bathroom has been moved during an extension, we check for old joints left behind under new fittings.

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 Thundersley © OpenStreetMap contributors

Hillside homes, extensions and conservatories

Thundersley sits on high ground above South Benfleet, with roads such as Bread and Cheese Hill climbing the slope. Homes on the higher and more open ground catch more wind and rain, and the mastic on their exposed sides wears faster. We cut out cracked exterior sealant around frames and patio doors and use weatherproof products with backing rod where the gap is deep.

Conservatories are common here, and the joints where a conservatory meets the house wall, or where the frame meets its base, are frequent leak points. Gutters and fascias on older bungalows can also need attention, and our gutter and fascia sealing page explains what we can do.

Council offices, leisure and local landlords

Castle Point Borough Council is based at Kiln Road in Thundersley, in offices first built for Benfleet Urban District Council in 1962. Offices, schools, surgeries and churches around the area all have toilets, kitchens and showers that need resealing from time to time, and work can be arranged out of hours.

Runnymede Leisure Centre has two pools and a gym, the kind of setting where changing rooms see constant use. We also work for landlords and letting agents across Thundersley, resealing between tenancies.

How it works

  1. Tell us about the job. A quick call or email with what needs sealing and where. Photos help us quote accurately.
  2. Get a clear quote. We give you a clear price before any work starts, and agree a date with you.
  3. Strip back the old joint. Every bit of old sealant is removed and the joint is cleaned, treated for mould and dried.
  4. Lay the new bead. We apply the right product for each joint and tool it to a clean, even line.
  5. Guaranteed work. You’ll know the cure time before we leave, and every job comes with a one-year guarantee.

What we do in Thundersley

  • Bathroom & kitchen resealing: Baths, showers, basins, wet rooms, worktops and sinks: old sealant cut out, mould treated and a new bead of anti-fungal silicone laid.
  • 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: Hotels, offices, washrooms and welfare areas resealed room by room, with out-of-hours working possible to arrange.
  • Remedial sealant & repairs: Messy, layered or wrong-product sealant cut out and replaced with the right sealant, laid the right way.
  • 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: Early-failing sealant in new homes fixed properly, plus mastic packages and snagging for developers.
  • Floor & skirting joints: Gaps under skirting boards, tile movement joints and concrete floor joints sealed with a product that suits the traffic.
  • Regrouting: Crumbling grout in showers and wet areas raked out and refilled, so water stays out of the wall behind.
  • Glazing & conservatory sealant: Leaking conservatory and rooflight joints, glass panels and shower screens resealed with silicone made for glass.
  • 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: Sash and case window surrounds in stone and brick re-pointed with traditional sand mastic.

Why choose Mr Mastic in Thundersley

Thundersley homes come in all shapes, and you need someone who has seen most of them. Mr Mastic has been doing this work for 20+ years, with 2,847+ projects completed. We are fully insured, ARBOMaster approved and use Arbo and Everbuild sealants. A 4.9-star Google rating from more than 180 five-star reviews speaks for the finish. We agree a clear quote up front, and a one-year guarantee covers every job.

Getting around Thundersley

For trains, Rayleigh station is closest to the centre. Well-known places nearby include Battlesbridge Motorcycle Museum (3.8 miles north) and Rayleigh Castle (1.7 miles north-east). Typical jobs near the centre are in homes and businesses around Thundersley Primary School, The Deanes School and Church of St Peter. Green spaces within reach include Little Haven Nature Reserve.

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

Neighbourhoods we cover in Thundersley

Pick your area for local details, or call 07833 053749 or email us with your postcode.

Also near Thundersley

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job

Your questions about mastic work in Thundersley

Do you cover all of Thundersley?

Yes. We cover the whole area, including New Thundersley, the Tarpots area and Daws Heath, as well as South Benfleet, Hadleigh and Rayleigh nearby.

The sealant where my extension meets the house keeps cracking. Can you fix it?

Yes. The two parts of the building can move differently, so we use a flexible sealant set at the right depth so it can stretch without splitting.

Can you reseal a shower in a loft conversion?

Yes. Loft bathrooms often sit on timber floors that flex, so we use a low-modulus silicone that copes with movement.

Do you seal around conservatories?

Yes. We reseal the joint between the conservatory and the house, and around the frames and base, using weatherproof sealant.

How long before I can use the bath?

Usually around 24 hours, depending on the product. We’ll tell you before we leave.

Do you work for Thundersley landlords?

Yes. We reseal between tenancies and can quote for more than one property.

My bungalow still has its original windows with very old mastic. Is it worth redoing?

Usually, yes. Old mastic that has hardened and cracked lets rain behind the frame. We cut it all out, check the gap and reseal it with a flexible exterior product.

Is the work guaranteed?

Yes. Every job comes with a one-year guarantee.

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