Barns Green mastic sealing
We carry out mastic sealing for building owners, managing agents and housing associations in Barns Green. Send details for a fixed quote.
- Damaged joints in communal entrances and corridors
- Failed external movement joints
- No planned programme for sealant
Mastic sealing for businesses in Barns Green
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
How we handle mastic sealing in Barns Green
We work for building owners, landlords with commercial or block portfolios, managing agents and housing associations. A planned, building-by-building programme often works better than reacting to each complaint and we quote and schedule each building in turn. We work on communal kitchens and washrooms, external wall and movement joints and communal entrances and stairwells, and what we’re called in for most is complaints coming in block by block and window mastic that has split and shrunk. Most enquiries from Barns Green start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Around smaller places like Barns Green, older walls fitted with newer windows are a familiar sight. The mastic needs to suit an irregular masonry face and the look of the building.
Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.
- Where
- Barns Green (RH13)
- Region
- West Sussex
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
What the job involves on each surface
Window and door perimeters on blocks
Window and door perimeters are where most mastic failure shows. We remove the failed mastic, prepare the faces, add backing rod if the joint is deep and reseal.
Estate-wide resealing programmes
An estate of similar buildings suits a rolling programme. We quote building by building and work through them in turn.
When to bring in a specialist
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.
Cost factors for mastic joints
The price varies from site to site. It mainly depends on:
- Working within restricted access windows
- Quantities, in metres or numbers
- Specialist products, such as fire-rated or hygienic sealants
- Joint width, depth and condition
We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote.
Details that help us quote
A few photographs plus some basic facts will normally do. It helps to include:
- A wide shot and a close-up of the area
- Asbestos survey details if the building is older
- The product your specification calls for
- Whether the building will be occupied during the work
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, give us a call on 01277 525 020 or email drawings and photos.
Questions we’re asked in Barns Green
We manage a building near Christs Hospital station. Can you help?
Yes, and several blocks can go on one quote. Send the address, photos of the elevations and your access arrangements, and we’ll give a fixed quote.
Is Barns Green too small for you to travel to?
Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Does weather matter for sealant work?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.
Will you just go over the old 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.
How do you reach windows on upper floors?
Every block is different. We agree access with you at quote stage so there are no surprises.
Can you send RAMS and CSCS details before starting?
Our credentials include CHAS, Constructionline and public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
How many days will you need on site?
It depends on the scope, though a typical visit typically takes one or more days per building, depending on the joint lengths and the access. For bigger or phased jobs, we’ll set out a timescale with the quote.
What sealant work can’t fix
Being straight saves everyone time. New sealant won’t cure:
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
- Water coming in from the roof or rainwater goods
- Asbestos-containing sealant, which we don’t remove
If in doubt, call the office on 01277 525 020 or use the quote form and we will say what we think before you book.
Surfaces we seal
- Communal entrances and stairwells
- External wall and movement joints
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Balcony and threshold joints
Blocks and managed buildings in Barns Green
Barns Green lies roughly 35 miles out from central London. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres. Barns Green is in the South East, one of the UK’s drier regions. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first.
If you own or manage units on a site such as Southwater Business Park, which lies east of Barns Green, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit. If you look after a block within reach of Christs Hospital station, 1.9 miles to the north-east of Barns Green, frame and balcony mastic can be renewed on one programme. If your remit includes a building such as Barns Green Primary School, frame and door mastic can be programmed for the holidays.
Barns Green is about 4 miles south-west of Horsham, in West Sussex. We send applicators to Barns Green for mastic joints. Our West Sussex coverage takes in 373 places, from busy centres to rural villages. Sites around Brighton have their own page, about 18 miles away.
Business premises anywhere in RH13 are within our area for mastic joints. Buildings on The Hordens, Smugglers Way and Finians Field are within our area for mastic joints. Just outside Barns Green, we also work in Brooks Green (1 mile south), Itchingfield (1 mile north), Southwater (2 miles east), Tower Hill (3 miles north-east) and Broadbridge Heath (3 miles north-east). Nearby towns on our patch include Crawley (10 miles north-east), Worthing (14 miles south), Haywards Heath (13 miles east), Burgess Hill (13 miles south-east), Shoreham-by-Sea (14 miles south) and Lancing (14 miles south).
Near you in Barns Green
In Barns Green, that means premises near The Queen's Head Public House and the streets around them. Barns Green’s nearest station is Christs Hospital station, roughly 1.9 miles north-east. Well-known places in the area include Horsham Hospital (4 miles north-east) and Christs Hospital School Museum (1.6 miles north-east). Open spaces near Barns Green include Knepp Wildland.
Places near Barns Green
Other services in Barns Green
Diagnose, treat, sign off
When we get to site, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, with the work itself typically taking one or more days per building, depending on the joint lengths and the access. Jobs in and around smaller places like Barns Green are typically planned as a single visit, so photos and measurements up front really help. That way the right products come on the day.
- First we look at the mastic on each building and note what needs replacing.
- 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.
Preparing the site
- Make sure the joints can be reached
- Share your working hours and any access restrictions
- Let building users know which areas are affected
Ask for a quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. For a chat about it beforehand, call the office on 01277 525 020 or email drawings and photos.
Advice
Maintenance after handover
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:
- Make it easy for occupiers to report draughts
- Share the asbestos register when you send details
- Keep bins and bikes away from communal door frames
- Check sealant joints during planned building inspections
Our workmanship is covered for 12 months, so report any failure in that time. Beyond that, routine checks spot the next round of repairs.
One failed perimeter normally means others on the same building are close so a single failure is a sign to check the rest. A planned reseal saves repeated visits.