Kent · England

Window & door mastic in Hawley, Kent

Window and door frames in Hawley need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.

  • Water coming in at the bottom corners of a door
  • Cracked internal joints between frame and plaster
  • Hard, cracked sealant around windows

Window mastic for Hawley homes and businesses

What affects the quote in Hawley

For a quick quote, just ask. The main things that affect it are:

  • The type of sealant required
  • The number and length of the joints
  • Whether the work is at height
  • Whether there’s mould to deal with

A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.

Asking for a quote

What to tell us when you ask for a quote:

  • What’s wrong with the joints now
  • The rough size of the job
  • The type of property
  • Photos by email, if that’s easy

There’s no standard price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or drop us an email.

How we handle window mastic in Hawley

Whether it’s one leaking patio door or every frame on the house, you’ll get a clear quote before any work starts. To get one, phone 0345 464 0079 or send us an email with the number of frames and any access details for window mastic in Hawley. We work on timber windows & doors, composite doors and aluminium frames, and the jobs we see most are mastic that has split away from the wall and mastic that’s falling out in pieces.

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

Whatever the size of the job, it’s backed by our one-year guarantee.

Applicator reaching up to seal an external door frame on a sunny day
Where
Hawley (DA2)
Region
Kent
Guarantee
12 months on all our work
Quotes
A clear price before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

What happens if it’s left?

Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly, and it’s easier while the walls are being worked on anyway. Where a wall is exposed, as many are in small places like Hawley, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

The cost reflects the work involved, not guesswork. That is why we ask about the job first and agree the price before starting.

What you get with us

  • Over 20 years’ experience
  • Every job guaranteed for a year
  • Approved under the ARBOMaster scheme
  • We never seal over old sealant

Read what affects the cost or our reviews.

Window mastic in Hawley: local notes

London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Hall Place and Gardens (about 3.3 miles north-west) are a reminder that the area around Hawley has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.

Letting a property close to Farningham Road station? Then renewing tired window mastic between tenants heads off draught and damp complaints. In the older streets around Church of St John the Baptist, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

Hawley is about 1 mile south of Dartford, in Kent. Hawley gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our area takes in 922 places across Kent, large and small. There’s also a page for London, roughly 15 miles from Hawley.

Jobs for window mastic in DA2 is quoted and booked the same way as anywhere else. If you need window mastic at a property on Ash Road, May Road and Shirehall Road or a nearby road, our applicators can take on the job. Nearby, we also carry out window mastic in Clement Street (1 mile south-west), Sutton at Hone (1 mile south-east), Darenth (1 mile east), Dartford (1 mile north) and St Margarets (2 miles south-east). Further out, we also cover Sevenoaks (10 miles south), Gravesend (7 miles east), Northfleet (5 miles east), Swanley (3 miles south-west), Kings Hill (13 miles south-east) and Swanscombe (3 miles north-east).

Near you in Hawley

Typical jobs here are in homes near Darenth Country Park, Leigh Academy and The Four Lymes pub. For rail, the closest station is Farningham Road station, about 1.5 miles south. Well-known places in the area include Bluewater (2.4 miles north-east) and Darenth Park Hospital (1.7 miles north-east). For a walk, there’s Wansunt Pit and Sawyers Lake.

Map of Hawley © OpenStreetMap contributors

Different surfaces, different methods

Composite doors

A composite door generally sits in a plastic outer frame, so its perimeter joint is sealed much like a window. We match the colour to the frame.

Window sills

The end joints of a sill tend to fail before the rest. We reseal them so rain can’t run into the wall.

The process

Before we leave, we go over the finished joints with you and explain the cure time. The visit itself generally takes a morning for a couple of windows and a door, depending on the amount of work. Somewhere as small as Hawley, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First, we confirm safe access to each frame.
  2. Old, cracked mastic is removed completely, along with any loose debris.
  3. Frame and wall are cleaned and must be dry before sealing.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. The joint is shaped to shed water and the area tidied.

Before we arrive

  • For business premises, tell us about site rules or sign-in
  • Let us know if you’ve seen damp or leaks
  • Plan for the work area to be out of bounds to pets and children

Ask for a quote

It all starts with a short chat. 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, ring 0345 464 0079 or send us an email.

Ask for a quote

Advice

When it is not the sealant

We will always be straight with you, so here’s what sealant can’t fix:

  • Draughts through the window seals rather than the frame
  • Broken hinges, locks or handles
  • Rotten timber, which needs a joiner first

Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.

Surfaces we seal

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

When to call us in Hawley

Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. If the sealant cannot stretch, it splits.

These are the problems we’re asked about most:

  • Black, perished sealant on frames
  • Cracked or shrunken mastic around the frame
  • White mastic on grey or black frames
  • Draughty joints inside around the window

Managing a site like Sutton-At-Hone Church of England Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.

What to look for in a quote

  • When the joint can take water or movement
  • What happens if the job turns out different
  • Whether the sealant suits the joint
  • How long the guarantee is

10 questions to ask before you book

For landlords and businesses

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.

In hotels, rooms out of use cost money, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.

Questions from Hawley

Do you cover Hawley for window mastic?

Yes, Hawley is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing.

Is Hawley within the area you cover?

Yes. Hawley is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Can you get sealant to suit coloured frames?

Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.

What do you put in the joint?

It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.

How much does window mastic cost in Hawley?

Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or send us an email with a short description of the job.

How many windows can you do in a day?

The work takes anything from an hour or two to a full day, depending on how many frames there are. Access and the amount of old mastic make the biggest difference.

Do you guarantee window mastic?

Yes. Every job comes with our 12-month guarantee, and we’re ARBOMaster approved applicators.

Should I try DIY first?

Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

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