Kent · England

Window Mastic in Selsted

Problem with your window and door frames in Selsted? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Draughty joints inside around the window
  • Rain getting in at the frame or under the sill
  • Gaps where the sill meets the wall

Window mastic for Selsted homes and businesses

What affects the cost of window mastic

Your quote is based on your job. We take into account:

  • How much old sealant there is and how hard it is to remove
  • The size of the job
  • How easy the joints are to reach
  • How many rooms, windows or areas are involved

Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.

Helping us quote

When you call or email, it’s useful to know:

  • The type of property
  • The problem you’ve noticed
  • Whether it has been sealed before
  • Access, such as stairs, a lift or height

Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.

Window mastic in Selsted, done properly

Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We are fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. Typical jobs include mastic that’s falling out in pieces and cold air getting in at the frame edge, across composite doors, patio & French doors and timber windows & doors.

Outdoor sealant needs dry, clean surfaces, so work on frames around Selsted is planned for dry weather. Let us know about access to all the frames, upstairs ones included.

We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.

Place
Selsted (CT15)
Region
Kent
Guarantee
A year, on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

DIY sealant or a professional job?

If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

Windows and doors in Selsted

London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Acrise Place (about 2.2 miles south-west) nearby, there’s older building stock in the area around Selsted as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

If you look after a building such as Selsted Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Shepherds Well station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.

Selsted is about 5 miles north of Folkestone, in Kent. We provide window mastic to homeowners, landlords and businesses in Selsted and nearby. Selsted is one of 922 towns and villages in Kent where we work. For nearby work, see our Chelmsford page (50 miles or so).

Jobs for window mastic in CT15 works the same way as everywhere else we cover. Neighbouring places we cover for window mastic include Swingfield Minnis (1 mile south), Wootton (1 mile north), Denton (2 miles north), Lodge Lees (2 miles north) and Shelvin (2 miles north). Larger places within reach include Ashford (13 miles west), Canterbury (9 miles north-west), Dover (6 miles east), Folkestone (5 miles south), Whitstable (15 miles north-west) and Deal (10 miles north-east).

Landmarks near Selsted

For rail, the closest station is Shepherds Well station, about 3.2 miles north-east. Nearby you’ll also find Royal Victoria Hospital (5 miles south) and Folkestone Castle (4.2 miles south). Green spaces nearby include Cheriton Hill.

Map of Selsted © OpenStreetMap contributors

What we do, step by step

When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a handful of frames, longer for a whole house. Somewhere like Selsted needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We check each frame and agree which ones need doing.
  2. We remove the old mastic and clean the frame and the wall.
  3. Where gaps are deep, backing rod goes in first.
  4. New exterior sealant goes on in a matching colour and is tooled smooth.
  5. Every joint is checked before we leave.

Preparing for the visit

  • Tell us if parking is tricky
  • Try not to wet indoor joints just before the visit
  • Tell us about any previous sealing or DIY attempts

Get a quote

Need a quote? Please ring 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear price before we start.

Get a quick quote

Read more

Do you need window mastic in Selsted?

Mastic ages in the weather. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.

Signs it’s time to call us include:

  • Draughts coming in around windows and doors
  • Cracked or shrunken mastic around the frame
  • Cracked internal joints between frame and plaster
  • Cracked sealant at the sill ends

Historic houses such as Acrise Place, about 2.2 miles south-west, show how far back building around Selsted goes, and older homes nearby need a sealant that suits their walls.

Comparing quotes

  • Whether all the old sealant comes out first
  • Who does the work, and how experienced they are
  • What preparation is included
  • How hidden problems are handled

10 questions to ask before booking

FAQs for Selsted

Do you work for landlords with property near Shepherds Well station?

Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or email us with the details for a clear quote.

Is Selsted within the area you cover?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Where is Mr Mastic based?

We work from Crawley. We cover Selsted and the rest of Kent, along with the rest of our area.

Can you seal the gap between the frame and the plaster indoors?

Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We do one or both.

Can you do upstairs windows?

Yes, as long as they can be reached safely. Let us know about access when you ask for a quote and we’ll plan for it.

Is there any odour?

There can be a smell while the sealant cures, but it fades. Opening a window helps.

Can resealing stop a draught around my window?

Yes, if the air is getting in around the frame. If it’s coming through the window seals, we will tell you.

Does someone need to be in?

We need access to the joints, so we’ll agree that with you when we book. Indoors, that usually means someone at home.

Surface by surface

Window sills

Stone and concrete sills have their own joints, including the one between the sill and the frame above. We seal those with a sealant suited to masonry.

Patio & French doors

The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so they get particular care.

Landlords, agents and businesses in Selsted

From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.

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.

Why deal with it now?

If you’re painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished. Where a wall is exposed, as many are in small places like Selsted, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.

Why us?

  • Colour agreed with you before we start
  • Full insurance on every job
  • 20+ years of sealant experience
  • One-year guarantee on every job

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

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