Kent · England

Window & door mastic in Durlock, Kent

Window mastic for Durlock and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.

  • Whistling draughts around closed windows
  • Old mastic that has gone black or come away
  • Water coming in at the bottom corners of a door

Window mastic in Durlock

About our window mastic in Durlock

Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. If you are dealing with hard, cracked sealant around windows and black, perished sealant on frames, we can help, on patio & French doors, timber windows & doors and window sills alike.

Homes in small places like Durlock often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.

You get a one-year guarantee, the same in Durlock as everywhere else we work.

Where
Durlock (CT3)
Wider area
Kent
Guarantee
12 months on all our work
Quotes
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

When something else is needed

New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:

  • Faulty window hardware
  • Worn gaskets, brush seals or a door that has dropped
  • Rotten timber, which needs a joiner first

Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.

Where we work in Durlock

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

When to call us in Durlock

Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.

Look out for these signs:

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

In the older streets around Church of St Nicholas, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

What to look for in a quote

  • Whether VAT is included
  • Whether the sealant suits the joint
  • Whether all the old sealant comes out first
  • What the cure time is

10 questions to ask before booking

How to look after the new joints

How long the joints last depends on use and care. Here’s what we suggest:

  • Clean frames with a soft cloth and soapy water
  • Keep timber frames painted
  • Ventilate rooms so frames do not stay wet inside
  • Do not use solvent cleaners on the joint

Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.

Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and a cold room gets colder. Resealing closes it.

Durlock: your questions answered

Do you work for landlords with property near Sandwich station?

Yes, we work for landlords and agents. You can call 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.

Will you come out to Durlock?

Yes, Durlock is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Will it make a mess?

No. The area is protected while we work and cleaned up afterwards.

Does the work come with a guarantee?

Yes, with our 12-month guarantee. A yearly look at the joints helps them last.

Is it OK to seal over old sealant?

No, it won’t last. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.

How long should I leave it?

Different products cure at different speeds, so follow the cure time we give you.

Do you take out the old sealant first?

Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

What the job involves on each surface

Aluminium frames

Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. We prepare and reseal every joint, backing the deep ones.

uPVC windows

The frame is cleaned with a product that will not harm the plastic, then the sealant goes in between frame and wall and tooled smooth.

Landlords, agents and businesses in Durlock

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.

Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.

Frames and glazing around Durlock

Historic houses like Goodnestone Park (about 2.7 miles south-west) are a reminder that the area around Durlock has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Rented homes near Sandwich station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. Schools such as Ash Cartwright and Kelsey Church of England Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.

Durlock is about 7 miles north-west of Deal, in Kent. Our applicators cover window mastic for householders, landlords and businesses in Durlock, as part of our work across Kent. 922 places in Kent are on our list, from the larger towns to small villages. Chelmsford is on our list too, around 46 miles away.

Here we cover the CT3 postcode area for window mastic. Other places close to Durlock include Guilton (1 mile north-east), Ash (1 mile east), Staple (1 mile south), Nash (1 mile north-west) and Barnsole (1 mile south). Larger places within reach include Canterbury (8 miles west), Margate (9 miles north-east), Dover (10 miles south), Folkestone (14 miles south), Ramsgate (8 miles north-east) and Broadstairs (9 miles north-east).

What’s near Durlock

We work in homes and buildings around The Chequer Inn and the streets around them. For rail, the closest station is Sandwich station, roughly 3.5 miles east of the centre. Nearby you’ll also find White Mill (2.9 miles east). For a walk, there’s Monk's Wall nature reserve.

Map of Durlock © OpenStreetMap contributors

How the visit works

We keep the work tidy and contained to the area we’re working on, so you can get on with your day. Expect the work to take a morning for a couple of windows and a door, and we explain the cure time before we leave. In a small place like Durlock, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. Each frame is looked over and we agree which ones need resealing.
  2. We remove the old mastic and clean the frame edge and wall.
  3. Deep gaps get closed-cell backing rod to set the depth.
  4. A flexible exterior sealant is applied in a colour to suit the frame.
  5. Every joint is tooled smooth and checked before we leave.

Getting ready for the visit

  • For business premises, tell us about site rules or sign-in
  • Tell us if parking is tricky
  • For indoor joints, keep the area dry beforehand if you can

Ask for a quote

To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before work begins.

Get a price

Related advice

Quotes for window mastic in Durlock

Every job gets its own quote. These are the things that affect it:

  • When we can work, for business premises
  • Whether there’s mould to deal with
  • Access and height
  • The product the joint needs

There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.

Helping us quote

When you contact us, it’s useful to know:

  • Whether it’s a home or a business
  • Photos by email, if that is easy
  • The rough size of the job
  • Whether it has been sealed before

If you are in Durlock and need window mastic, phone 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price 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