Mastic sealant contractors in Petersfield
Mastic sealing for Petersfield, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Draughts at frames across a block
- Window mastic that has split and shrunk
- Movement joints with sealant missing
Mastic sealing across Petersfield
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Mastic sealing for commercial buildings in Petersfield
Across Petersfield and the rest of Hampshire, we work the same way: send details, get a fixed quote, we seal, and the work is guaranteed. A list of buildings, a few photographs and approximate joint numbers are enough for a quick quote or we can visit. If you have mastic failing across several blocks on an estate and a mix of products and colours from past repairs, we can help. A specialist sealant contractor works differently from a general builder: in Petersfield, that means joint design, primers and backing rod as standard.
Older buildings in towns like Petersfield have often had replacement windows fitted at different times, which leaves perimeter mastic of very different ages. A look at the whole building shows which joints need doing now.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.
- Place
- Petersfield (GU31, GU32)
- Region
- Hampshire
- Cover
- 12 months on every job
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
Our process
On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, and the work usually takes one or more days per building, depending on the joint lengths and the access. If you have more than one building in Petersfield, they can often be done on the same visit, with one quote covering them. Tell us when the building is open and we will plan to suit.
- A building-by-building inspection lists the failed joints.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- Joints are resealed and tooled.
- We check the finished work and confirm the guarantee.
Getting the site ready
- Point out parking and an unloading spot
- Have the specification and drawings to hand
- Send your site hours and access windows
Quotes
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we will arrange a site visit if anything is unclear.
Read more
Why it’s worth doing now in Petersfield
Failed perimeter mastic lets cold air in around frames, and they often blame the windows. Resealing the perimeters is often the simpler fix when the frames themselves are sound. A failed joint is easier to put right before damp shows inside. Once water gets in, there’s drying out and making good as well.
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.
Why appoint us
- Old sealant cut out, never sealed over
- 12 months’ guarantee on every job
- Standard and matched colours in many product ranges
- One contact handling all your sites
Take a look at our cost guide or how we’re accredited.
When to bring in a specialist
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
What sets the cost
A fixed quote reflects the actual work. It takes account of:
- Specialist products, such as fire-rated or hygienic sealants
- Quantities, in metres or numbers
- Backing rod, priming and other preparation
- Removal of failed or old sealant
Pricing mastic joints depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.
Before you send an enquiry
The more we know, the firmer the quote. When you get in touch, include:
- Drawings or a marked-up plan, if available
- A wide shot and a close-up of the area
- Anything awkward about access or site hours
- Whether an asbestos survey exists
Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.
For owners and agents in Petersfield
The South East is one of the drier parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and south- and west-facing elevations, which take the most sun and rain, often age first. Petersfield lies roughly 50 miles out from central London. Managed blocks of flats are a big part of commuter-belt property, and window and balcony mastic on them tends to age at the same rate.
For agents with blocks near Petersfield station, which lies west of Petersfield, a block-wide mastic programme deals with frames, balconies and entrances in one go. Historic properties like Uppark, 4.1 miles to the south-east of Petersfield, show the age of some local stock, where frame mastic must suit soft brick or stone.
Petersfield is about 10 miles north of Havant, in Hampshire. We send applicators to Petersfield for mastic joints. Our Hampshire coverage takes in 723 places. We also cover Portsmouth, around 15 miles from Petersfield.
We cover the GU31 and GU32 postcode districts. We cover commercial and managed buildings on High Street, Station Road and London Road. Main routes into Petersfield include the A3 and A272, which helps when planning parking and deliveries for the job. Close to Petersfield, our area also takes in Sheet (1 mile north-east), Steep (1 mile north), Stroud (2 miles west), Steep Marsh (2 miles north) and Langrish (3 miles west). Nearby towns on our patch include Havant (10 miles south), Horndean (7 miles south-west), Alton (10 miles north), Waterlooville (9 miles south-west), Purbrook (10 miles south-west) and Bordon (8 miles north-east).
Around Petersfield
Around Petersfield, our work takes us to commercial buildings near The Petersfield School, The White Hart pub and Morton House School, among other places. There’s a railway station in Petersfield itself: Petersfield station. Other landmarks nearby include Bear Museum (under half a mile south) and Petersfield Community Hospital (under half a mile west). Open spaces near Petersfield include Wheatham Hill and Liss Riverside Railway Walk South.
Your questions answered
Do you take on block-wide or estate-wide mastic work in Petersfield?
Yes. Planned programmes across a building, block or estate are a core part of this service. Residents are given notice through you, and the work moves building by building.
We manage a building near Petersfield station. Can you help?
Yes, we work for agents, landlords and housing associations with blocks of every size. Photos of each elevation help us quote accurately.
Does weather matter for sealant work?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Can people stay in the building while you reseal?
We plan around people living or working in the building. We agree the programme so you can notify occupiers and communal access is kept open.
How soon can the area be used again?
We will confirm how long the chosen product needs to cure, and sign any area that should be left alone.
How long does a typical visit take?
We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.
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.
Signs you need mastic sealing in Petersfield
The edges of the material itself sometimes break away for example where render or brick edges crumble. If the edges are unsound, we say so before quoting the sealing.
These are often picked up first by site or facilities staff:
- Damp patches beside frames
- Complaints coming in block by block
- Communal area joints that look neglected
- Estate-wide sealant that is simply worn out
If you’re responsible for a building such as St Peter's Church, frame and door mastic needs the same attention as any other property.
Before you book anyone
- Proof of insurance
- What the guarantee covers, and for how long
- Their plan for phasing and protecting the area
- How joint depth will be controlled
Also in Petersfield
Commercial clients in Petersfield
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. We’re fully insured, and our insurance certificate can go with the quote.