Mastic sealing for building owners and managing agents in Tower Hill, West Sussex
Our CSCS-carded applicators take on mastic sealing for building owners, managing agents and housing associations in Tower Hill and the surrounding area. Send photographs or drawings for a fixed quote.
- Occupiers reporting cold air round windows
- Old repairs sealed over failed mastic
- Damp patches beside frames
Mastic sealing for Tower Hill sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Aftercare for building managers
Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:
- Reduce knocks to communal area joints
- Have the asbestos survey to hand for older buildings
- Make mastic part of routine maintenance checks
- Start inspections with the most exposed faces
Ask residents or tenants to report draughts or leaks round windows early. Early reports catch failures before damage spreads.
Left open, joint edges in render, brick or frames can deteriorate. Once that happens, repairs come before resealing and the job grows.
Mastic sealing for commercial buildings in Tower Hill
We diagnose before we prescribe: what has failed, what caused it and whether new sealant will actually solve it. Failed mastic is stripped, the faces taken back to sound material, primed where the manufacturer specifies and resealed, with backing rod setting the depth where it’s needed. If you’re dealing with old repairs sealed over failed mastic and damaged joints in communal entrances and corridors, we can help, whatever the surface. One point of contact handles commercial sealant work in Tower Hill from the first photographs to the final walk-round, for single jobs and planned programmes alike.
Around smaller places like Tower Hill, older walls fitted with newer windows are a familiar sight. Perimeter mastic there has to grip an uneven face and suit the building’s character.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.
- Where
- Tower Hill (RH13)
- Region
- West Sussex
- Cover
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Block-wide mastic in Tower Hill
There are seven care or nursing homes within about 2 miles of Tower Hill. Care home owners need frame and external mastic kept sound without unsettling residents. Rainfall across the South East, Tower Hill included, is lower than in many parts of the UK. External mastic still waits for dry faces and the right temperature, while the elevations that take the most sun tend to show hardened mastic first.
Property owners at sites such as Tanbridge Retail Park, 0.6 miles north-east of Tower Hill, can have mastic renewed between lettings. Trustees of buildings like Parish Church of St Mary can bring frame and external mastic into a planned maintenance list.
Tower Hill is about 1 mile south-west of Horsham, in West Sussex. We cover commercial sites throughout Tower Hill, for single jobs and planned programmes alike. 373 places across West Sussex fall within our area, including Tower Hill. There’s a separate page for Brighton, roughly 18 miles from Tower Hill.
Work on mastic joints is covered throughout RH13, whatever the building. We cover commercial and managed buildings on Tower Hill, Tower Close and Salisbury Road. We also cover Broadbridge Heath (1 mile north-west), Horsham (1 mile north-east), Southwater (2 miles south), Itchingfield (2 miles west) and Warnham (2 miles north). Further afield, our area takes in Crawley (8 miles north-east), Haywards Heath (11 miles east), Burgess Hill (11 miles south-east), East Grinstead (15 miles east), Shoreham-by-Sea (15 miles south) and Broadfield (7 miles north-east).
What’s near Tower Hill
Locally, jobs take us to sites close to Tanbridge House School, Warnham Park and The Doyle School of Design and Technology and the streets around them. For rail, the closest station is Christs Hospital station, about 0.9 miles west of the centre. Nearby you will also find Horsham Hospital (1.3 miles north-east) and Christs Hospital School Museum (1.1 miles south-west). Not far away are Warnham LNR.
What the job involves on each surface
External movement joints
The joint width has to suit the movement and the sealant’s capability with the width-to-depth ratio set as the manufacturer advises.
Tenement and older buildings
Older mastic can contain asbestos and the register is checked before anything is disturbed. If it’s suspected, work stops until it’s tested.
What we’re called out for in Tower Hill
We often find joints filled solid with no backing rod, so the mastic is glued to the joint bottom too. It can’t stretch properly and splits as the building moves.
Things that typically lead to an enquiry:
- Occupiers reporting cold air round windows
- A mix of products and colours from past repairs
- Damp patches beside frames
- Brittle perimeter mastic across a building
For a school such as St John's Catholic Primary School, perimeter mastic on windows and doors is a holiday job.
What to look for in a quote
- Their public liability cover
- Are they CHAS accredited or on Constructionline?
- Do they follow the manufacturer’s priming guidance?
- Which product they’ll use, and why it suits the joint
Towns and villages near Tower Hill
Other services in Tower Hill
Our process
We bring the products specified for the job, along with primers and backing rod. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and the sealant is tooled off neatly. For work around Tower Hill, we aim to finish in one visit, so photographs and measurements up front really help. That way the right products come on the day.
- A building-by-building inspection lists the failed joints.
- You get a fixed quote, per block or for the whole programme.
- Dates and areas are agreed so occupiers can be told.
- Old mastic is removed and the joint faces prepared.
- New sealant goes in with backing rod and primer where needed.
- Each building is checked and signed off with the 12-month guarantee.
Before we start on site
- Send your site hours and access windows
- Share the asbestos register for older buildings
- Clear stock, furniture or equipment away from the joints
Request a quote
For a fixed quote, give us a call on 01277 525 020 or email the details over, telling us the site location and the nature of the job. You can also send details through our quote form.
Related advice
Questions we are asked in Tower Hill
Is Tower Hill too small for you to travel to?
Not at all. Tower Hill is within our area. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.
We manage a building near Christs Hospital station. Can you help?
Yes, and several blocks can go on one quote. Photos of each elevation help us quote accurately.
Is it fine to apply new sealant on top of old?
No, never. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.
How long does a typical visit take?
The duration is planned around your programme and the access we are given. We’ll give you an estimate of time on site when we quote.
Do you work with property factors and landlords?
We do. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords, and we quote building by building or as a programme.
How do you reach windows on upper floors?
We talk through access for each building when we quote. Tell us the number of storeys and whether scaffold or other access is planned and we’ll confirm the approach in the quote.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and we will price the work to it.
For managing agents and facilities managers
We work for building owners and managing agents on everything from one building to a spread of sites around Tower Hill. Several sites can go on one quote, so there’s one set of paperwork to deal with.
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
What sealant work can’t fix
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Water coming in from the roof or rainwater goods
- Substrate edges that need repairing first
- Frames that are rotten, warped or broken
Not sure which it is? You can phone 01277 525 020 or email the details over and we’ll tell you honestly before you book.
Surfaces we seal
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- Window and door perimeters on blocks
- External wall and movement joints
- Balcony and threshold joints
- Communal entrances and stairwells