Kent · England
Window Mastic in Lynsted
Mastic around window and door frames, sills and patio doors in Lynsted, with a 12-month guarantee on every job. Call for a quick quote.
- Cracked sealant at the sill ends
- Gaps between the frame and the inside reveal
- Water coming in at the bottom corners of a door
Questions from Lynsted
Can you help a landlord with a rental near Teynham station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or email us with the details for a clear quote.
Is Lynsted in your area for window mastic?
Yes. Our work covers London and the South East, and Lynsted is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we are using and why.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
How much does window mastic cost in Lynsted?
Size, access and the old material all affect the cost. Ask us for a quote.
Can you get sealant to suit coloured frames?
Usually, yes. Mention the frame colour when you ask for a quote and we will use the nearest match.
Is it messy?
No. We protect the surfaces around the joints, and we tidy up before we go.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Window mastic for homes and businesses in Lynsted
If you can feel air around a shut window, the gap is often at the frame. Resealing that joint can make a room feel noticeably less draughty and quietens the whistle on windy days. Where the air is getting in through the window itself, we will say so. We work on patio & French doors, timber windows & doors and composite doors, and people most often call us about sealant in the wrong colour for the frame and rushed sealant from a window installation.
In a village or hamlet like Lynsted, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
You get a 12-month guarantee, the same in Lynsted as everywhere else we work.
- Place
- Lynsted (ME9)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

How to look after the new joints
After the cure time, these simple habits help:
- Avoid blasting the frames with a pressure washer
- Wash the frames with mild soapy water
- Ventilate rooms so frames do not stay wet inside
- Don’t use solvent cleaners on the joint
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
What window mastic looks like in Lynsted
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Belmont House and Gardens (about 3.8 miles south-east) nearby, there’s older building stock in the area around Lynsted as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
For site and facilities teams at buildings such as Lynsted and Norton Primary School, its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Teynham station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Lynsted is about 3 miles south-east of Sittingbourne, in Kent. We carry out window mastic for homes and businesses in Lynsted. Our area takes in 922 places across Kent. Chelmsford is on our list too, around 32 miles away.
Work in ME9 is quoted and booked the same way as anywhere else. If you need window mastic at a property on The Street, St Pauls Court and Ludgate Lane or anywhere close by, we can help. We also cover the places around Lynsted: Bogle (1 mile north-east), Erriottwood (1 mile south), Bapchild (1 mile west), Newbury (1 mile south-west) and Radfield (1 mile north). We also work in nearby towns such as Maidstone (12 miles west), Ashford (12 miles south), Canterbury (13 miles east), Sittingbourne (3 miles north-west), Whitstable (11 miles east) and Faversham (4 miles east).
Landmarks near Lynsted
Typical jobs here are in homes near Sittingbourne Community College and Black Lion Public House, among other places. The nearest railway station is Teynham station, about 1.6 miles north-east. Other landmarks nearby include Newnham Castle (2 miles south) and Sittingbourne Heritage Museum (2.6 miles north-west).
Landlords, agents and businesses in Lynsted
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
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.
Nearby places to Lynsted
More services for Lynsted
DIY sealant or a professional job?
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.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
The process
You don’t need to clear the whole room or building before we come, just the space around the work. We protect the rest, and the job takes most of a day for a typical house, less for a few frames in most cases. Somewhere as small as Lynsted, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Mention any sign-in or site rules at work premises
- Move anything stored near the joints
Get a quote
Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job, and we’ll take it from there.
Advice
What happens if it’s left?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. Older cottages and farmhouses around Lynsted can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
Why Lynsted clients choose us
- Domestic, commercial and hotel work
- We leave the area clean and tidy
- Colour picked to suit the job
- We agree the colour with you first
What we are called out for in Lynsted
Timber windows bring their own problems. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
Common reasons people contact us are:
- Gaps between the frame and the inside reveal
- Mastic that’s falling out in pieces
- Damp patches on the reveal after heavy rain
- Untidy mastic left by window fitters
In the older streets around Church of St Peter and St Paul, the joint between an old wall and a newer frame is generally the first place rain gets in.
Questions to ask before booking
- How long the guarantee is
- Which sealant they’ll use, and why
- Whether you can choose the colour
- Who turns up on the day
What affects the cost of window mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
- Whether the work is at height
- How many areas need sealing
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will explain what it covers.
Helping us quote
To help us quote quickly, let us know:
- Where the job is, and your postcode
- How we’d reach the joints
- What’s wrong with the joints now
- Whether it has been sealed before
If you’re in Lynsted and need window mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
