Mastic Sealing in Seething Wells
Mastic sealing for building owners, managing agents and housing associations in Seething Wells. CHAS accredited and fully insured, with a 12-month guarantee.
- Occupiers reporting cold air round windows
- No planned programme for sealant
- Movement joints with sealant missing
Need mastic sealing in Seething Wells?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Questions about Seething Wells
Does your area include sites such as Fairfield Trade Park, near Seething Wells?
Yes. Our area takes in Seething Wells and its surroundings, with estates and business parks such as Fairfield Trade Park included. To start, just speak to us on 01277 525 020 or email drawings and photos with the unit, the joints involved and your access times.
Can you quote for a block close to Surbiton station?
Yes. Blocks of any size are within what we do. Send the address, photos of the elevations and your access arrangements, and we’ll give a fixed quote.
Do you seal on top of existing sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
What paperwork can you provide?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We are CHAS accredited and a Constructionline member.
How long do sealant joints last?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
What if the old mastic contains asbestos?
Some mastics in pre-2000 buildings contain asbestos. We ask for the asbestos register or survey before work starts and suspect material is tested first.
Is mastic sealing guaranteed?
Our workmanship carries a 12-month guarantee and we hold public liability insurance.
Mastic sealing in Seething Wells
In buildings from before 2000, some old mastics contain asbestos. We check the asbestos register or survey before any old sealant is cut out and if it’s suspected, work stops until it’s tested. Removing asbestos-containing material isn’t something we do. The enquiries we see most involve draughts at frames across a block and damaged joints in communal entrances and corridors, across shopfronts below residential blocks, window and door perimeters on blocks and communal kitchens and washrooms. Most enquiries from Seething Wells start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
Planning mastic work on a London block means notices to residents, access to flats and agreed working areas. Work is planned with the agent so residents get notice and access is arranged in advance.
We sign every job off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.
- Location
- Seething Wells (KT6, KT1, KT7)
- Region
- Greater London
- Guarantee
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Nearby places to Seething Wells
More services for Seething Wells
On site: what to expect
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Most London premises stay occupied while we’re on site, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- Old sealant is stripped and each face prepared back to firm material.
- Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
Before we start on site
- Arrange parking or a loading space
- Send any specification or drawings in advance
- Tell staff and tenants when we will be in
Get a fixed quote
Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings that you can work with. For a chat about it beforehand, give us a call on 01277 525 020 or send details through our quote form.
Read more
Keeping the joints sound
Once the work is signed off, these steps help:
- Avoid piecemeal callouts where you can
- Mention RAMS, insurance or CSCS requirements up front
- Check the asbestos register before any old mastic is disturbed
- Make it easy for occupiers to report draughts
Keep records of when each building was resealed. It helps plan the next round and shows what was done.
The longer failed joints are left, the more likely the substrate edges break up. Then the edges may need repairing first.
What we can’t put right
Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:
- Glazing that needs replacing
- Water coming in from the roof or rainwater goods
- Masonry that has broken away beside the joint
If you are not sure, just speak to us on 01277 525 020 or send photos by email and we’ll give you a straight answer before you book.
Surfaces we seal
- Communal kitchens and washrooms
- Communal entrances and stairwells
- Window and door perimeters on blocks
- Balcony and threshold joints
- External wall and movement joints
- Shopfronts below residential blocks
Blocks and managed buildings in Seething Wells
Blocks in London are usually run by managing agents, landlords or housing associations, with residents to notify and access to arrange. We fit the programme to your notice periods. There are 14 care or nursing homes within about 2 miles of Seething Wells. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents.
Blocks of flats and mixed-use buildings often cluster around stations such as Surbiton station (less than half a mile east of Seething Wells) and their window and balcony mastic tends to age at the same rate across a building. Property owners at sites such as Fairfield Trade Park (1.2 miles north-east of Seething Wells) can have mastic renewed between lettings. For a school such as Maple Infants' School, perimeter mastic on windows and doors is a holiday job.
Seething Wells is about 4 miles north-west of Ewell, in Greater London. Our applicators travel to Seething Wells for work on mastic joints, handled exactly as we handle every other area. Seething Wells is one of 764 places we cover in Greater London. London is covered too, around 12 miles from Seething Wells.
Work on mastic joints is covered throughout KT6, KT1 and KT7. Among the streets we cover are Maple Road, Grove Road and North Road, and sites on any of them can send details for a fixed quote. Sites close to Seething Wells are covered too, including Surbiton Park (1 mile north-east), Long Ditton (1 mile south), Thames Ditton (1 mile west), Ditton Hill (1 mile south) and Weston Green (1 mile west). Nearby towns on our patch include London (12 miles north-east), City of Westminster (11 miles north-east), Marylebone (11 miles north-east), Kensington (9 miles north-east), St Pancras (12 miles north-east) and Shoreditch (14 miles north-east).
Local landmarks in Seething Wells
Around Seething Wells, our work takes us to commercial buildings near The Hollyfield School and Sixth Form Centre, The City Arms and Hampton Court Park, among other places. There’s a railway station in Seething Wells itself: Surbiton station. Well-known places in the area include Chessington Castle Hill (2.6 miles south) and Metropolitan Police Mounted Branch Museum (1.6 miles west). The countryside around Seething Wells includes The Wood and Kingston Hill Road area.
General trades versus a specialist
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Building owners, agents and FMs in Seething Wells
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go with the quote.
How the job changes by surface
Tenement and older buildings
Stone needs a neutral-cure product and we choose accordingly.
Communal areas
Communal areas stay in use while we work. We work in sections so access is never blocked.