Kent · England

Window & door mastic in Rodmersham, Kent

Mastic around window and door frames, sills and patio doors in Rodmersham, with a 12-month guarantee on every job. Call for a quick quote.

  • Old mastic that has gone black or come away
  • Water coming in at the bottom corners of a door
  • Hard, cracked sealant around windows

Window mastic in Rodmersham

Rodmersham questions

Does living near the coast affect window mastic in Rodmersham?

Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.

I let a flat near Sittingbourne station. Can you help?

Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.

Can you do the inside joint as well?

Yes. Inside, the joint between frame and plaster is sealed neatly.

Do I have to be there?

If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.

Do you do commercial work?

Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.

Do you take out the old sealant first?

Yes. We cut out all the old sealant and clean the joint.

Is the work guaranteed?

Yes. All our work carries a 12-month guarantee, and we are fully insured.

Can you get sealant to suit coloured frames?

Yes. White, brown, anthracite grey, black and clear sealants are all available, so the joint suits the frame.

Window mastic for homes and businesses in Rodmersham

Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re ARBOMaster approved and fully insured, and we give a one-year guarantee on the work. Common call-outs are for cracked internal joints between frame and plaster and black, perished sealant on frames, on timber windows & doors, patio & French doors and composite doors.

In a village or hamlet like Rodmersham, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.

The work is covered for a year after we finish. If anything isn’t right with it, call 0345 464 0079 or send us an email.

Applicator reaching up to seal an external door frame on a sunny day
Where
Rodmersham (ME9)
Wider area
Kent
Guarantee
A year, on every job
Quotes
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026

What happens on the day

Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a few frames, or a day or more for a whole house, and the area is left clean. Somewhere as small as Rodmersham, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We check how each frame can be reached safely.
  2. All the failed sealant is cut away.
  3. Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
  4. Deep voids are backed, then the sealant is gunned in.
  5. We tool the joint so water runs off, then clear up.

How to prepare

  • Mention any sign-in or site rules at work premises
  • Clear the area around the work
  • Mention any tricky access

How to get a quote

Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.

Get a price

Advice

Why it’s worth doing now in Rodmersham

A quick bead over the top of old mastic looks like an easy fix, but it won’t grip old, dirty sealant. It peels before long, and water still gets in behind. The old mastic has to come out. Around Rodmersham, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and send you a clear quote before we start.

Why us?

  • A 12-month guarantee on all work
  • White, clear, grey or another colour, product permitting
  • Rated 4.9 stars on Google
  • Quality sealants from Arbo and Everbuild

Take a look at our cost guide and what customers say.

What sealant work can’t fix

Some problems need a builder, plumber or other trade rather than us:

  • Soft or decayed wood in the frame
  • Faulty window hardware
  • A door that needs adjusting, rehanging or new seals

If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.

Joints and surfaces we work on

  • Window sills
  • uPVC windows
  • Aluminium frames
  • Patio & French doors
  • Timber windows & doors
  • Composite doors

Looking after it afterwards

Joint life depends on how it’s used and looked after. We suggest:

  • Wipe condensation off the frames
  • Keep drainage slots and sill grooves clear
  • Avoid blasting the frames with a pressure washer
  • Do not paint over the silicone

Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.

Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.

DIY versus a professional finish

The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.

The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.

Rodmersham homes and the weather

Rodmersham is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

If you look after a building such as Rodmersham School, the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Sittingbourne station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.

Rodmersham is about 2 miles south-east of Sittingbourne, in Kent. We carry out window mastic for householders, landlords and businesses in Rodmersham and the surrounding area. We cover 922 towns and villages across Kent, from the larger towns to small villages. You can also see our page for Chelmsford, about 31 miles away.

We cover every part of the ME9 postcode area for window mastic and the streets around it. Other places close to Rodmersham include Bapchild (1 mile south), Rodmersham Green (1 mile west), Highsted (1 mile west), Radfield (1 mile north-east) and Newbury (1 mile south). Further out, we also cover Maidstone (11 miles west), Ashford (13 miles south), Canterbury (14 miles east), Whitstable (12 miles east), Faversham (5 miles east) and Minster (7 miles north).

What’s near Rodmersham

Around Rodmersham, our work takes us to homes and buildings near The Sittingbourne School and Cromers Wood, among other places. Rodmersham’s nearest station is Sittingbourne station, about 1.8 miles north-west of the centre. Well-known places in the area include Bayford Court (1.6 miles north-west) and Sittingbourne Heritage Museum (1.4 miles north-west).

Map of Rodmersham © OpenStreetMap contributors

When to call us in Rodmersham

Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.

The problems people normally mention when they call are:

  • Damp patches on the reveal after heavy rain
  • Draughts coming in around windows and doors
  • Cracked sealant at the sill ends
  • Untidy mastic left by window fitters

Homes close to Church of St Nicholas include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

Comparing quotes

  • Whether they’re fully insured
  • Is VAT in the price?
  • Whether they seal over old material or remove it
  • How the joint is cleaned and prepared

How to choose a mastic man

Work for landlords, hotels and businesses

Housing providers, facilities teams and property managers book us too in Rodmersham and across Kent. We can quote a run of properties together, and we are fully insured.

Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.

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