
East Harting mastic sealing
Mastic sealing for building owners, managing agents and housing associations throughout East Harting and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Open joints in brickwork or panels
- Complaints coming in block by block
- Damaged joints in communal entrances and corridors
Mastic sealing for East Harting sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Mastic sealing for commercial buildings in East Harting
There isn’t one mastic for every joint on a building. Low-modulus neutral-cure silicone suits many window perimeters and external movement joints, and MS polymer sealants stick well to many substrates and often take paint, and colours are confirmed for whichever product is used. We work on window and door perimeters on blocks, communal entrances and stairwells and external wall and movement joints, and the usual reasons a site gets in touch are the same joint failures repeated across a portfolio and old repairs sealed over failed mastic. Searching for sealant specialists in East Harting? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
For owners with a single building near East Harting, we plan to finish in one visit where possible. Photos of each elevation help us quote accurately.
Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Place
- East Harting (GU31)
- Wider area
- West Sussex
- Guarantee
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026

Frames, entrances and external joints in East Harting
East Harting 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. Central London is about 49 miles from East Harting. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres, and window and balcony mastic on them tends to age at the same rate.
Buildings close to stations like Petersfield station (4.1 miles north-west of East Harting) are often flats over shops, with frame mastic to keep sound. For a school such as Harting CofE Primary School, perimeter mastic on windows and doors is a holiday job. If you are responsible for a building such as The Parish Church of St Mary & St Gabriel, frame and door mastic needs the same attention as any other property.
East Harting is about 4 miles south-east of Petersfield, in West Sussex. Any commercial site in East Harting is covered, for single jobs and planned programmes alike. Across West Sussex, 373 places are covered, East Harting among them. For work in that direction, see our Portsmouth page, about 15 miles away.
If you need mastic sealing in GU31, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Among the streets we cover are Hollist Lane, East Harting Street and Orchard Close, and sites on any of them can send details for a fixed quote. Close to East Harting, our area also takes in South Harting (1 mile west), Nyewood (1 mile north), Elsted (1 mile east), Elsted Marsh (2 miles east) and Dumpford (2 miles north-east). A short drive away, we cover Bognor Regis (15 miles south-east), Chichester (10 miles south), Portfield (10 miles south-east), Yapton (15 miles south-east), East Wittering (14 miles south) and Nyetimber (15 miles south-east).
Near you in East Harting
We work on buildings around The Ship Inn. The nearest railway station is Petersfield station, roughly 4.1 miles north-west. Other landmarks nearby include Bear Museum (3.7 miles north-west) and Petersfield Community Hospital (4.1 miles north-west). For a walk, there’s Iping and Stedham Commons and Oakham Hill.
Also near East Harting
Also in East Harting
When something else is needed
We check first that sealant really is the fix. It won’t put right:
- Water coming in from the roof or rainwater goods
- Substrate edges that need repairing first
- Misted or failed double-glazed units
If in doubt, call the office on 01277 525 020 or send details through our quote form and we’ll say what we think before you book.
Joints and surfaces we work on
- Communal kitchens and washrooms
- Balcony and threshold joints
- Window and door perimeters on blocks
- Communal entrances and stairwells
- Shopfronts below residential blocks
- External wall and movement joints
Different surfaces, different methods
Window and door perimeters on blocks
Blocks have a mix of frame materials, so the grade we pick has to bond to frame and wall alike. Colours are confirmed for the product used.
Planned maintenance
We can work into your cyclical maintenance plan on a timetable you set.
East Harting: questions and answers
Will you take on a block within reach of Petersfield station?
Yes, we work for agents, landlords and housing associations with blocks of every size. Give us the building’s details and say how residents are notified, and we’ll quote and plan to suit.
Is East Harting too small for you to travel to?
Not at all. East Harting is within our area. We work across Greater London and the South East. Good photos up front let us bring everything on the first visit.
Do you seal on top of existing sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
How long will the new sealant last?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
Do you guarantee the mastic work?
A 12-month guarantee covers our work. It applies to our workmanship rather than damage or problems with the frames.
How do you handle work on occupied blocks?
The work is planned around occupiers. Dates and areas are agreed with you so residents or tenants can be told and communal access is kept open.
Do you check for asbestos in old sealant?
Asbestos removal isn’t part of our work. Anything suspect is tested before we carry on, and the duty to manage asbestos sits with the dutyholder.
Our process
Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. Rural sites near East Harting may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.
- We check the asbestos register for older buildings and look at the joints.
- A fixed quote covers the joints, products and order of work.
- Failed mastic is removed completely.
- The joints are prepared and resealed with the right product.
- Buildings are completed in turn.
What we need from you
- Make sure the joints can be reached
- Agree which areas must stay open
- Tell staff and tenants when we’ll be in
Quotes
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, speak to us on 01277 525 020 or email a schedule or drawings.
Advice
Why deal with it now?
Failed perimeter mastic lets cold air in around frames and the windows typically get the blame. Resealing the perimeters is often the simpler fix where the frames themselves are sound. For buildings around smaller places like East Harting, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.
The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site requirements come into it too.
Why appoint us
- Work carried out by CSCS-carded applicators
- Sealing commercial buildings since 2005
- A fixed quote before work starts
- Public liability insurance in place
Take a look at how commercial sealant jobs are priced and how we’re accredited.
Building owners, agents and FMs in East Harting
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. East Harting can form part of a wider programme across West Sussex.
We work for building owners and managing agents on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.
After the work
After handover, a little attention goes a long way:
- Start inspections with the most exposed faces
- Group repairs into a planned programme
- Log resealing dates block by block
- Share the asbestos register when you send details
Keep bins, bikes and deliveries away from low-level joints where you can. Damage at low level is the most common reason communal joints fail early.
Joints on a building age together, so it pays to look at the whole elevation. A planned reseal saves repeated visits.