Mastic sealant contractors in Lenham
Mastic sealing in Lenham, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Mastic failing across several blocks on an estate
- Occupiers reporting cold air round windows
- Failed external movement joints
Mastic sealing for businesses in Lenham
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle mastic sealing in Lenham
For blocks and buildings in Lenham and across Kent, the process is the same: you send details, we return a fixed quote, the joints are resealed and the 12-month guarantee follows. Addresses, photos of typical joints and a rough idea of quantities let us give a quick quote, and site visits can be arranged. If you’re dealing with draught complaints from residents or tenants and a mix of products and colours from past repairs, we can put it right. A specialist sealant contractor works differently from a general builder: in Lenham, that means joint design, primers and backing rod as standard.
Converted and older buildings in and around Lenham often put modern windows into old walls. The mastic there needs to suit both surfaces.
Work we carry out in Kent comes with a 12-month guarantee. If an installation problem shows up, give us a call on 01277 525 020 or email drawings and photos and we’ll arrange a return visit.
- Location
- Lenham (ME17)
- Wider area
- Kent
- Guarantee
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
How the job changes by surface
Tenement and older buildings
Older buildings, including Scotland’s sandstone tenements, have their own joint details. The material either side of the joint shapes the product choice.
Planned maintenance
Planned resealing replaces emergency callouts and spreads the work.
What happens if it’s left?
Dealing with failed joints one report at a time is slow and scattered. A planned programme treats each building once and is simpler to manage and budget. Over time, UV, weather and movement wear any sealant out. Replacing it before it fails keeps water out.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Why appoint us
- Colour agreed before work starts
- A Constructionline member, so easy to vet
- Public liability insurance in place
- Sealing commercial buildings since 2005
Read how commercial sealant jobs are priced and our accreditations.
What sets the cost
Quotes vary with the job. It mainly depends on:
- The total length or number of joints
- How much existing material needs removing
- Induction, permit and paperwork requirements
- How accessible the joints are
What a job costs comes down to the quantity of joints, what has to come out first and the access. Call for a fixed quote once you have the details.
What we need to price the job
The more we know, the firmer the quote. Helpful details to send:
- The site address and postcode
- Your programme or deadline
- How the joints are reached, and at what height
- Asbestos survey details if the building is older
A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or call the office on 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.
Mastic sealing in Lenham: the local picture
Lenham lies roughly 39 miles out from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres. Rainfall across the South East, Lenham included, is lower than in many parts of the UK. Outside mastic still needs a dry joint and the right temperature, and south- and west-facing elevations, which take the most sun and rain, often age first.
For agents with blocks near Lenham station (less than half a mile south-west of Lenham), a block-wide mastic programme deals with frames, balconies and entrances in one go. If you manage student housing near a university such as Canterbury Christ Church University, 2.5 miles north-west of Lenham, the summer turnaround is the time for mastic.
Lenham is about 7 miles south of Sittingbourne, in Kent. Our applicators travel to Lenham for work on mastic joints. Lenham is one of 931 places we cover in Kent for mastic joints. Sites around London have their own page, about 39 miles away.
Commercial sites across ME17 are covered. For a building on High Street, Mitchell Close and Hatch Road or nearby, send details and we’ll quote for mastic joints. Just outside Lenham, we also work in Leadingcross Green (1 mile south), Woodside Green (1 mile north-east), West Street (1 mile north-east), Lenham Forstal (2 miles south-east) and Lenham Heath (2 miles south-east). Bigger towns within reach include Maidstone (8 miles west), Ashford (9 miles south-east), Sittingbourne (7 miles north), Faversham (9 miles north-east), Minster (13 miles north) and Kings Hill (13 miles west).
Near you in Lenham
Recent enquiries here include premises near Kiln Wood, The Red Lion pub and The Lenham School and the streets around them. There’s a railway station in Lenham itself: Lenham station. Well-known places in the area include Coldbridge Castle (2.7 miles south) and The Dog Collar Museum (3.6 miles west).
Nearby places to Lenham
More services for Lenham
When to bring in a specialist
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
Lenham: questions and answers
Do you cover business parks and estates near Lenham, such as Roebuck Business Park?
Yes. We cover Lenham and the area around it, including industrial estates, business parks and retail parks such as Roebuck Business Park. To start, just speak to us on 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.
Is Lenham off your patch?
No. Small places get the same service as large ones. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
How long do sealant joints last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Do you take on small jobs?
Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.
How long before the joints can be used?
We will confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.
Can you work to our specification?
Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.
How do you reach windows on upper floors?
Access is discussed and agreed before the quote is fixed. Tell us the number of storeys and whether scaffold or other access is planned and we will confirm the approach in the quote.
From enquiry to sign-off
Working in a building that stays open takes some planning. We sign and contain the area we are in, with routes through the building left open and work section by section so the rest of the building stays in use. Work in places the size of Lenham is planned as a single visit where we can. Photos with rough sizes let us arrive with everything needed.
- A building-by-building inspection lists the failed joints.
- The quote is fixed and split as suits you.
- We agree the programme and dates with you.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- We check the finished work and confirm the guarantee.
Getting the site ready
- Flag any permit to work we’ll need
- Have the specification and drawings to hand
- Share your working hours and any access restrictions
Quotes
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, phone 01277 525 020 or email the details over.
Related advice
What we’re called out for in Lenham
Many failed joints were sealed without backing rod, so the mastic is glued to the joint bottom too. That three-sided adhesion stops it stretching and it tears.
Site and facilities staff are often the first to spot these:
- Worn sealant at communal door frames
- Repeated reactive repairs to the same buildings
- Cracked, hardened mastic round windows on a block
- Damp patches beside frames
If your remit includes a building such as Lenham Primary School, frame and door mastic can be programmed for the holidays.
Before you book anyone
- How joint depth will be controlled
- Do they follow the manufacturer’s priming guidance?
- Their public liability cover
- Can the work be phased to keep areas open?