Kent · England

Window & door mastic in Pegwell, Kent

Mastic around window and door frames, sills and patio doors for Pegwell, backed by a 12-month guarantee. Ask us for a quote.

  • Draughts coming in around windows and doors
  • White mastic on grey or black frames
  • Mastic that has split away from the wall

Window mastic for Pegwell homes and businesses

Window mastic in Pegwell, done properly

Frames and walls don’t move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That is why the joint needs a flexible, low-modulus sealant rather than something rigid. If you have gaps where the sill meets the wall and old mastic that has gone black or come away, we can put it right, whatever the surface.

Mastic can only go onto a dry, clean joint, so window work in Pegwell is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.

Whatever the size of the job, you get the same one-year guarantee in Pegwell and across Kent.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Where
Pegwell (CT11, CT12)
Region
Kent
Cover
One year on every job
Quotes
A clear price before work begins
Call
0345 464 0079
Page updated
26 October 2026

Can I do it myself?

The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.

If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.

Pegwell homes and the weather

Pegwell is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around window and door frames, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

Homes close to Church of St Laurence include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in. Letting a property close to Ramsgate station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.

Pegwell is about 1 mile south-west of St Lawrence, in Kent. Every kind of property in Pegwell can book us for window mastic, old or new, large or small. The work is guaranteed for a year. Pegwell is one of 922 towns and villages in Kent where we work for window mastic. Our Chelmsford page covers work nearby (48 miles or so).

Jobs for window mastic in CT11 and CT12 works the same way as everywhere else we cover. That includes homes and businesses on Saxon Road, Downs Road and London Road and the roads around them. Pegwell is on the A299, so it’s easy for us to get to. Other places close to Pegwell include Chilton (1 mile north), Cliffs End (1 mile west), Newington (1 mile north), Manston (2 miles north-west) and Haine (2 miles north). Larger places within reach include Canterbury (14 miles west), Margate (4 miles north), Dover (14 miles south), Broadstairs (3 miles north-east), Deal (8 miles south) and Herne Bay (12 miles west).

Landmarks near Pegwell

We work in homes and buildings around Churchill House School With Railed Area, Chatham House Grammar School and Sandwich and Pegwell Bay. For rail, the closest station is Ramsgate station, about 1.1 miles north-east of the centre. A little further out are Ramsgate General Hospital (0.8 miles east) and Westwood Cross (2.2 miles north). Open spaces near Pegwell include Sandwich and Pegwell Bay.

Map of Pegwell © OpenStreetMap contributors

What we’re called out for in Pegwell

Joint shape matters as much as the product. A thin smear across a wide gap has nothing to it, while a joint packed solid can’t stretch. That’s what backing rod is for.

The problems people generally mention when they call are:

  • Gaps left after new windows were fitted
  • White mastic on grey or black frames
  • Old mastic that has gone black or come away
  • Cracked or shrunken mastic around the frame

Schools such as Chilton Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.

Questions to ask before booking

  • Whether the sealant suits the joint
  • What guarantee comes with the work
  • Whether they seal over old material or remove it
  • Is VAT in the price?

Our hiring checklist

Landlord and commercial work in Pegwell

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.

How the visit works

Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes most of a day for a typical house, less for a few frames, depending on the size of the job. Somewhere as small as Pegwell, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We start by checking each window and door with you.
  2. The old mastic is cut out and the surfaces cleaned back.
  3. Deep gaps are filled with backing rod to set the depth.
  4. A flexible, weatherproof sealant is applied in a colour to suit the frame.
  5. Finally we tidy up and check each joint.

Before we arrive

  • Try not to wet indoor joints just before the visit
  • Mention any parking rules near the property
  • Tell us about access, such as stairs, a lift or high-level joints

Getting a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or send us an email.

Get a quick quote

Advice

Why deal with it now?

The work is quick compared with the damage it prevents: the visit takes anything from an hour or two to a full day, depending on how many frames there are. Wait for damp to appear and there may be plaster and decorating to sort out too. In a small place like Pegwell, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

The cost depends on the size of the job, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.

Why book with us

  • Full insurance on every job
  • One-year guarantee on every job
  • We leave the area clean and tidy
  • We agree the colour with you first

Read our cost guide and what customers say.

How the job changes by surface

uPVC windows

Fitters’ mastic on plastic frames is sometimes thin and rushed. We cut it out, back any deep gaps and reseal properly.

Composite doors

A composite door normally sits in a plastic outer frame, and the joint around it is sealed like a window. The bead is colour-matched to the frame.

Questions from Pegwell

Is Pegwell within the area you cover?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Does living near the coast affect window mastic in Pegwell?

Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.

Do you take out the old sealant first?

Yes. All of the old material is cut out and the joint cleaned.

Do you seal inside as well as outside?

Yes. Outside is the weather seal; inside closes the gap to the plaster. We can do either or both.

Can you get sealant to suit coloured frames?

Usually, yes. Mention the frame colour when you ask for a quote and we will match it as closely as we can.

Where are you based?

We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.

Can I add another job to the visit?

Yes. Several rooms, windows or areas can go on one quote.

Are you an approved applicator?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.

Quotes for window mastic in Pegwell

We quote each job individually. These are the things that affect it:

  • The old material and how stubborn it is
  • Access and height
  • How many rooms, windows or areas are involved
  • Any working-time requirements on site

The cost reflects the work involved, not guesswork. That is why we ask a few questions first and give you a clear price before we start.

Asking for a quote

You do not need to know the technical terms. Just tell us:

  • The address or postcode of the job
  • What the problem is, such as mould, gaps, leaks or cracking
  • A few pictures by email, if you can
  • If it’s domestic, commercial or a hotel

Want a quote for window mastic? Please ring 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.

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