Kent · England
Richborough Port Window Mastic
Window mastic in Richborough Port from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps between the frame and the inside reveal
- Mastic that’s falling out in pieces
- Sealant in the wrong colour for the frame
Landlords, agents and businesses in Richborough Port
If you manage several properties in or around Richborough Port, several properties can go on one quote. Send us the addresses and the work at each.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Window mastic for homes and businesses in Richborough Port
Behind a thin line of old mastic there’s sometimes a deep void. Packing it solid with sealant gives a joint that cannot flex, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. We are often asked to deal with gaps left after new windows were fitted and white mastic on grey or black frames, on window sills, patio & French doors and timber windows & doors.
In a village or hamlet like Richborough Port, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Location
- Richborough Port (CT13)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

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. Most jobs then take a morning for a couple of windows and a door. Somewhere like Richborough Port 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.
- We check each frame and agree which ones need doing.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Preparing for the visit
- Move anything stored near the joints
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
Get a quote
Asking for a quote is easy: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we will take it from there.
Advice
Different surfaces, different methods
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We seal the frame and let you know about anything else.
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.
Your questions about window mastic in Richborough Port
Does living near the coast affect window mastic in Richborough Port?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Do you cover smaller places like Richborough Port?
Yes. Richborough Port is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
How many windows can you do in a day?
The work takes a morning for a couple of windows and a door. Access and the amount of old mastic make the biggest difference.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Richborough Port, along with the rest of our area.
Can I add another job to the visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
How long before the joint can be used?
That depends on the sealant used, so follow the cure time we give you.
Do you have sealant for grey or black windows?
Yes, we choose a colour to suit the frame. Grey and black frames get grey or black sealant, and wood-effect frames usually suit brown.
Can you seal the gap between the frame and the plaster indoors?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Broken hinges, locks or handles
- Damp coming through the wall itself rather than the frame joint
- Condensation trapped between the panes
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Richborough Port
- Window sills
- Timber windows & doors
- Patio & French doors
- Aluminium frames
- uPVC windows
- Composite doors
Towns and villages near Richborough Port
More services for Richborough Port
What affects the quote in Richborough Port
Call for a quick quote. The main things that affect it are:
- The type of sealant required
- Mould in or behind the old joints
- Whether the work is at height
- Working hours on commercial sites
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
What we need to know
Before you ask for a quote, have a think about:
- Where the property is
- Whether it’s a home or a business
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved and give you a clear quote.
What window mastic looks like in Richborough Port
Richborough Port is within about 2 miles of 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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like Sir Roger Manwood's School? Then its window and door frames need their mastic kept sound, just like a home’s. Historic houses such as Quex Park, about 4.3 miles north, show how far back building around Richborough Port goes. If you let a flat or house near Thanet Parkway station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Richborough Port is about 4 miles south-west of Ramsgate, in Kent. Richborough Port gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Kent coverage runs to 922 places, Richborough Port among them. Chelmsford is on our list too, around 48 miles away.
Work in CT13 works the same way as everywhere else we cover. Other places close to Richborough Port include Ebbsfleet (1 mile north), Sevenscore (2 miles north), Cliffs End (2 miles north-east), Way (2 miles north) and Pegwell (2 miles north-east). We also work in nearby towns such as Canterbury (12 miles west), Margate (5 miles north), Dover (12 miles south), Ramsgate (4 miles north-east), Broadstairs (5 miles north-east) and Whitstable (14 miles west).
What’s near Richborough Port
In Richborough Port, that means homes and buildings near Sandwich and Pegwell Bay and the streets around them. The closest station to Richborough Port is Thanet Parkway station, about 1.8 miles north. A little further out are Ramsgate General Hospital (3.2 miles north-east) and White Mill (2.1 miles south-west). Green spaces nearby include Sandwich and Pegwell Bay.
Leave it or put it right?
A quick bead over the top of old mastic looks like an easy fix, but it won’t grip old, dirty sealant. It soon lifts and the leak carries on behind it. The old mastic has to come out. Around Richborough Port, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What you get with us
- Colour agreed with you before any work starts
- A sealant colour to suit the surroundings
- 4.9 on Google from 180+ five-star reviews
- Domestic, commercial and hotel work
Take a look at what affects the cost and customer reviews.
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
