Kent · England
Window & door mastic in Gravesend, Kent
Window and door frames in Gravesend need attention? We remove the old material, prepare the joints and seal them properly.
- Rushed sealant from a window installation
- Mastic that is falling out in pieces
- Gaps between the frame and the inside reveal
Gravesend homes and the weather
Gravesend is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to Christ Church Milton include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. Letting a property close to Gravesend station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Gravesend is about 9 miles north-west of Gillingham, in Kent. If you need window mastic in Gravesend, please call 0345 464 0079 or drop us an email for a quick quote. We cover Kent from our Crawley base. Gravesend is one of 922 towns and villages in Kent we cover for window mastic. For nearby work, see our London page.
All of DA12 and DA11 is within our area for window mastic. Streets in the area include Christ Church Road, Hillside Drive and Laurel Avenue, and we cover them all. Being close to the A2 and A226, Gravesend is easy for our applicators to reach for window mastic. We also cover the places around Gravesend: Windmill Hill (1 mile north-west), Milton-next-Gravesend (1 mile north-east), Denton (1 mile east), Singlewell or Ifield (1 mile south) and Northfleet (1 mile west). Larger places within reach include Maidstone (13 miles south-east), Dartford (7 miles west), Sevenoaks (13 miles south-west), Swanley (9 miles west), Kings Hill (11 miles south) and Foley Park (12 miles south-east).
Near you in Gravesend
Typical jobs here are in homes near Northfleet Urban Country Park, St John's Catholic Comprehensive and St John's Catholic Comprehensive, among other places. The nearest railway station is Gravesend station, roughly 0.9 miles north-west of the centre. Nearby you will also find Gravesham Museum (0.9 miles north-west) and Stone Castle (4.5 miles west). Open spaces near Gravesend include Sawyers Lake and Gad's Hill.
Window mastic in Gravesend, done properly
The new joint doesn’t have to be white. We can seal in white, brown, anthracite grey, black or clear, so the line suits the frame instead of standing out. We are often asked to deal with mastic that’s falling out in pieces and mastic that has split away from the wall, on patio & French doors, aluminium frames and window sills.
In a town like Gravesend, the windows on the most exposed side of a house take the brunt of the rain, so the mastic there tends to fail first. It’s worth looking at every frame, not just the one that leaks.
The work is covered for a year after we finish. If anything is not right with it, call 0345 464 0079 or email us.
- Location
- Gravesend (DA12, DA11)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What we do, step by step
When we arrive, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work starts. Most jobs take a few hours for a handful of frames, longer for a whole house. For a job in Gravesend, we need access to where the work is and somewhere nearby to park. If the job is outside, mention gates, side access and anything above ground floor.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
How to prepare
- Clear the area around the work
- Let us know about parking restrictions
- Keep children and pets away from the work area
How to get a quote
Getting a quote is simple: tell us what needs doing and where. A few photos by email make the job easier to understand, and we will come back to you with a quote.
Advice
Should I try it myself first?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Looking after it afterwards
So the new joints stay in good condition:
- Air rooms to keep condensation down around windows
- Keep drainage slots and sill grooves clear
- Use gentle cleaners on frames and sealant
- Do not aim a pressure washer at the joints
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak, and if anything looks wrong, just phone 0345 464 0079 or drop us an email.
Signs to watch for: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
What we can’t put right
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Rotten timber, which needs a joiner first
- A door that needs adjusting, rehanging or new seals
- A failed sealed unit that has misted up
If you’re not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer.
Where we work in Gravesend
- Composite doors
- Window sills
- uPVC windows
- Patio & French doors
- Timber windows & doors
- Aluminium frames
What we’re called out for in Gravesend
Every frame moves through the day. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. A sealant that cannot keep up eventually tears.
Any of these means the joints need attention:
- Gaps between the frame and the inside reveal
- Draughts coming in around windows and doors
- Black, perished sealant on frames
- Water coming in at the bottom corners of a door
Managing a site like Whitehill Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Before you book anyone
- How hidden problems are handled
- Whether they’re fully insured
- Is VAT in the price?
- How much experience the applicator has
FAQs for Gravesend
Does the coastal weather in Gravesend affect outside sealant?
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 work for landlords with property near Gravesend station?
Yes. We work for letting agents and landlords as well as householders. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we are using and why.
Do you have insurance?
Yes, we are fully insured.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Can resealing stop a draught around my window?
Often, yes. The gap between frame and wall is a common source of draughts, and sealing the inside and outside joints closes that path.
Can you match the sealant to my frames?
Yes. We can use white, brown, anthracite grey, black or clear.
Towns and villages near Gravesend
More services for Gravesend
How we quote for window mastic
You’ll get a clear quote before we start. It’s based on:
- The size of the job
- Mould in or behind the old joints
- Which sealant suits the joint
- How easy the joints are to reach
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
What we need to know
What to tell us when you ask for a quote:
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
- How many joints, rooms or windows are involved
- What the problem is, such as mould, gaps, leaks or cracking
We do not publish a price list. Instead, we give you a clear quote for your job. To get started, phone 0345 464 0079 or drop us an email.
Why act early in Gravesend
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and they’re far easier to fix early.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
Why Gravesend customers choose us
- We never seal over old sealant
- 4.9 on Google from 180+ five-star reviews
- A choice of colours where the product allows
- Colour picked to suit the job
Read our cost guide and customer reviews.