The Mastic Doctor team standing beside their branded vans outside an office building
West Sussex · England

Coneyhurst mastic sealing

Mastic sealing for building owners, managing agents and housing associations in Coneyhurst and across West Sussex. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Communal area joints that look neglected
  • Patchy repairs in mismatched sealant
  • The same joint failures repeated across a portfolio
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Need mastic sealing in Coneyhurst?

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Quoting for work in Coneyhurst

What shapes the price:

  • The size and state of each joint
  • Whether old sealant has to be cut out first
  • How accessible the joints are
  • Site requirements such as inductions and permits

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we will explain how it’s made up.

Before you send an enquiry

However big the job, these details speed things up:

  • The product your specification calls for
  • Any dates the work must fit around
  • The type of building and who uses it
  • The site address and postcode

A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or ring 01277 525 020 or send photos by email to discuss it first.

About our mastic sealing in Coneyhurst

We diagnose before we prescribe: what has failed, what caused it and whether new sealant will actually solve it. Old mastic is removed entirely, the faces prepared, primer used where the maker specifies it and new sealant tooled in and backing rod used wherever a joint is deep. The enquiries we see most involve no planned programme for sealant and water getting in round frames after rain, across window and door perimeters on blocks, external wall and movement joints and communal entrances and stairwells. A specialist sealant contractor works differently from a general builder: on jobs in Coneyhurst, preparation and product choice get the time they need.

In and around smaller places like Coneyhurst, landlords and agents often look after small groups of housing association properties, converted farm buildings and community buildings. Frame and wall-joint mastic on all of them ages and hardens.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

Location
Coneyhurst (RH14)
Region
West Sussex
Cover
12 months on every job
Price
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Blocks and managed buildings in Coneyhurst

The South East is one of the drier parts of the UK. Outside mastic still needs a dry joint and the right temperature, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first. Coneyhurst is about 37 miles from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres; their frame mastic often ages block-wide.

Buildings close to stations like Billingshurst station, 1.2 miles to the north-west of Coneyhurst, are often flats over shops, with frame mastic to keep sound. Site managers at schools like The Weald School can fit frame mastic into the summer works.

Coneyhurst is about 6 miles south-west of Horsham, in West Sussex. Businesses, contractors and managing agents in Coneyhurst use us for work on mastic joints. We work across 373 places in West Sussex. Sites around Brighton have their own page, about 18 miles away.

We cover the RH14 postcode districts. Sites close to Coneyhurst are covered too, including Billingshurst (2 miles north-west), Five Oaks (3 miles north), Newpound Common (3 miles north-west), The Haven (4 miles north) and Slinfold (5 miles north). Bigger towns within reach include Crawley (13 miles north-east), Horsham (6 miles north-east), Worthing (13 miles south), Haywards Heath (14 miles east), Burgess Hill (13 miles east) and Littlehampton (14 miles south).

Landmarks near Coneyhurst

For rail, the closest station is Billingshurst station, about 1.2 miles north-west. Nearby you’ll also find Christs Hospital School Museum (3.9 miles north-east). The countryside around Coneyhurst includes Knepp Wildland.

Map of Coneyhurst © OpenStreetMap contributors

How the job changes by surface

Estate-wide resealing programmes

A programme can start with the worst buildings and work down. You get one fixed quote per building or for the whole estate.

Commercial and mixed-use buildings

Commercial buildings have mastic at shopfronts, entrances and external joints. A planned programme suits multi-building portfolios.

Why act early in Coneyhurst

Failed perimeter mastic lets cold air in around frames, and they often blame the windows. In many cases, new perimeter sealant deals with it where the frames themselves are sound. Around Coneyhurst, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we’ll quote for the lot.

A quote for mastic joints depends on how many there are, their condition and the access. Call for a quote.

Why clients in Coneyhurst choose us

  • Work to your specification and the manufacturer’s guidance
  • Commercial sealant work since 2005
  • Fully insured
  • Colour agreed before work starts

Read our cost guide and our accreditations.

Your questions answered

Will you take on a block within reach of Billingshurst station?

Yes. Blocks of any size are within what we do. Photos of each elevation help us quote accurately.

Is Rosier Commercial Centre, near Coneyhurst, within your area?

Yes. We cover Coneyhurst and the area around it, including industrial estates, business parks and retail parks such as Rosier Commercial Centre. To start, just ring 01277 525 020 or email drawings and photos with the unit, the joints involved and your access times.

When can the area be used after sealing?

Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.

Can you seal joints high up on a block?

We talk through access for each building when we quote. Tell us the building height and any access already in place, and we will tell you how we’d approach it.

Do you work for managing agents and housing associations?

Yes, block and estate work is a core part of what we do. Buildings are scheduled in turn so you can plan around it.

Can you send RAMS and CSCS details before starting?

We are CHAS accredited, a Constructionline member and carry 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.

Will residents or tenants be disturbed?

Occupiers stay in the building throughout. If any flats or units need access, we’ll tell you in advance so you can arrange it with occupiers.

Maintenance after handover

Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:

  • Plan resealing building by building rather than complaint by complaint
  • Keep bins and bikes away from communal door frames
  • Make it easy for occupiers to report draughts
  • Keep a record of when each building was resealed

Include sealant in planned building inspections. Watch for splits, open gaps, hard or chalky surfaces and mastic pulling away and record where they are.

Budgets are easier to plan when sealant is part of planned maintenance. We can quote buildings in priority order and work down the list.

How a job runs

Site rules come first: sign-in, induction and whatever permit system the building uses. Once we are cleared to begin, we take the joints in the sequence agreed with you. For work around Coneyhurst, we aim to finish in one visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.

  1. A building-by-building inspection lists the failed joints.
  2. You get a fixed quote, per block or for the whole programme.
  3. We agree the programme and dates with you.
  4. Failed sealant is removed and the faces prepared.
  5. Joints are resealed and tooled.
  6. Each building is checked and signed off with the 12-month guarantee.

Getting the site ready

  • Tell us which areas need to stay in use
  • Let us know about inductions and permits
  • Confirm the product named in the specification

Ask for a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, call the office on 01277 525 020 or email a schedule or drawings.

Get a quick quote

Read more

Do you need mastic sealing in Coneyhurst?

Communal entrances and corridors see a lot of wear, with joints near the floor and around doors suffering most. Cleaning products add to the wear.

What tends to prompt an enquiry:

  • Damaged joints in communal entrances and corridors
  • Draughts at frames across a block
  • Movement joints with sealant missing
  • Estate-wide sealant that is simply worn out

Older buildings near Coneyhurst, from historic houses such as Old Place Manor (4.8 miles south-west of Coneyhurst) to more modest stock, need compatible products when frames are resealed.

Questions to ask before you book

  • Will RAMS and insurance details be available?
  • What level of public liability insurance do they hold?
  • How they’ll work around occupants
  • Is the sealant right for the movement and the substrate?

How to choose a sealant contractor

Accreditations

Trusted. Accredited. Insured.