Medway · England

Allhallows Window Mastic

Window and door frames in Allhallows need attention? We remove the old material, prepare the joints and seal them properly.

  • White mastic on grey or black frames
  • Untidy mastic left by window fitters
  • Gaps between the frame and the inside reveal

Book window mastic in Allhallows

Keeping the joints in good condition

Joint life depends on how it’s used and looked after. Here’s what we suggest:

  • Make sure the drainage slots aren’t blocked
  • Clean frames with a soft cloth and soapy water
  • Keep paint off silicone joints
  • Keep solvents and bleach off the sealant

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

Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.

How we handle window mastic in Allhallows

Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. Just ring 0345 464 0079 or drop us an email and tell us how many frames there are and how they’re reached for window mastic in Allhallows. We work on window sills, uPVC windows and patio & French doors, and common reasons people get in touch are cold air getting in at the frame edge and cracked internal joints between frame and plaster.

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

The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.

Location
Allhallows (ME3)
Wider area
Medway
Cover
One year on every job
Price
A clear price before we start
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

Why act early in Allhallows

Draughts and leaks don’t always mean new windows. Where the frames are sound, new mastic usually deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we’ll say so. Where a wall is exposed, as many are in small places like Allhallows, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.

Why us?

  • We are fully insured
  • A sealant colour to suit the surroundings
  • Domestic, commercial and hotel work
  • 180+ five-star Google reviews

Read how sealant jobs are priced and our reviews.

Your questions about window mastic in Allhallows

Does the coastal weather in Allhallows affect outside sealant?

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.

Do you work for landlords with property near Chalkwell station?

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

Can new window sealant be painted?

It depends on the sealant. Silicone isn’t paintable, but some hybrid sealants are. Tell us if you’re decorating and we’ll choose accordingly.

Do you seal inside as well as outside?

Yes, we do both. Indoors, we seal between the frame and the plaster or reveal, using a paintable sealant if you want to decorate.

Do I need to be at home?

It depends on the job. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.

Is it worth trying it myself?

That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.

How long does it take to reseal the windows on a house?

Allow most of a day for a typical house, less for a few frames. Access and how stubborn the old mastic is affect the time most.

Do you cover Allhallows?

Yes, we do. Our applicators work in Allhallows.

What we do, step by step

The work is kept neat and contained to the joints we are treating, so you can get on with your day. The job usually takes anything from an hour or two to a full day, depending on how many frames there are, and we explain the cure time before we leave. For a village or hamlet like Allhallows, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. First we look at every frame and agree the list.
  2. We remove the old mastic and clean the frame and the wall.
  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. Every joint is checked before we leave.

How to prepare

  • Keep pets and children clear of the area while we work
  • Move anything stored near the joints
  • Where the joints are inside, avoid wetting them before we arrive

Ask for a quote

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.

Get a price

Read more

What we cannot put right

We’d rather tell you now than do work that won’t last, so these are the limits:

  • Soft or decayed wood in the frame
  • A failed sealed unit that has misted up
  • Broken hinges, locks or handles

If you are not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer before you book.

Surfaces we seal

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

Can I do it myself?

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.

Frames and glazing around Allhallows

Allhallows is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. 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.

For landlords with property near Chalkwell station, renewing tired window mastic between tenants heads off draught and damp complaints. For an older house near a landmark such as Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

Allhallows is about 5 miles south-east of Canvey Island, in Medway. Our applicators cover window mastic for homes and businesses in Allhallows and the surrounding area, as part of our work across Medway. Across Medway, we cover 68 places, Allhallows among them. We also work in Chelmsford, around 20 miles away.

All of ME3 is within our area for window mastic, from the main roads to the quietest streets. Whether your property is on St Andrew's Walk, Avery Way and St Matthew's Way or anywhere close by, we can help. Other places close to Allhallows include Allhallows-on-Sea (1 mile north-east), Lower Stoke (1 mile south), Middle Stoke (1 mile south), Stoke (2 miles south-west) and St Mary Hoo (2 miles west). Further out, we also cover Gillingham (7 miles south-west), Chatham (9 miles south-west), Rochester (8 miles south-west), Rainham (8 miles south), Strood (9 miles south-west) and Luton (8 miles south-west).

What’s near Allhallows

Locally, jobs take us to homes and businesses close to Rose And Crown Public House and the streets around them. Allhallows’s nearest station is Chalkwell station, about 5 miles north of the centre. Nearby you will also find Chartwell Private Hospital (5.5 miles north) and Bay Museum (3.9 miles north-west). The countryside around Allhallows includes Bishop Saltings.

Map of Allhallows © OpenStreetMap contributors

Signs you need window mastic in Allhallows

Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, and it lets go sooner than it should.

Any of these means the joints need attention:

  • Cracked internal joints between frame and plaster
  • Mastic that has split away from the wall
  • Water coming in at the bottom corners of a door
  • Old mastic that has gone black or come away

If you look after a building such as Allhallows Primary Academy, its window and door frames need their mastic kept sound, just like a home’s.

Questions to ask before booking

  • Whether you can choose the colour
  • The length of the guarantee
  • What product goes in the joint
  • How the joint is cleaned and prepared

Choosing a sealant specialist

Landlord and commercial work in Allhallows

If you manage several properties in or around Allhallows, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.

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