Gilston mastic sealing
Mastic sealing for building owners, managing agents and housing associations throughout Gilston and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.
- No planned programme for sealant
- A mix of products and colours from past repairs
- Communal area joints that look neglected
Mastic sealing across Gilston
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing for commercial buildings in Gilston
We diagnose before we prescribe: which joints have failed, why, and whether sealant is the right answer. 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. The enquiries we see most involve failed external movement joints and no planned programme for sealant, across window and door perimeters on blocks, external wall and movement joints and shopfronts below residential blocks. Most enquiries from Gilston start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
Owners and agents with buildings around smaller places such as Gilston tend to manage small terraces of association properties, converted barns and commercial units. Mastic around frames and on external joints wears out in time, whatever the building.
Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Location
- Gilston (CM20)
- Wider area
- Hertfordshire
- Guarantee
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Cost factors for mastic joints
A fixed quote reflects the actual work. It takes account of:
- Quantities, in metres or numbers
- Distance, for remote addresses
- How much existing material needs removing
- The size and state of each joint
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.
Before you send an enquiry
For an accurate fixed quote, we need to understand the site. Send us:
- Where the site is, with the postcode
- How the joints are reached, and at what height
- The product your specification calls for
- The type of building and who uses it
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.
Our process
Site rules come first: signing in, inductions and any permit to work. Once we’re cleared to begin, we take the joints in the sequence agreed with you. Rural sites near Gilston may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- Failed mastic is removed completely.
- Joint faces are cleaned, backed and resealed.
- We finish each building before moving to the next.
Getting the site ready
- Explain the parking and delivery arrangements
- Confirm the product named in the specification
- Let building users know which areas are affected
Ask for a quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. If you have questions first, call the office on 01277 525 020 or email us.
Advice
What happens if it’s left?
Reacting to every complaint means sending someone out block by block. A planned programme treats each building once, under a single quote and a single programme. Halls, stores and units around places like Gilston may not be checked every day, which gives a failed joint time to do damage. Resealing early avoids that.
What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote when you are ready.
Why us?
- Over 20 years of commercial sealing
- Coloured sealants to suit the setting, where available
- Health and safety: CHAS accredited
- Fully insured
Also near Gilston
Other services in Gilston
Common questions from Gilston clients
Will you take on work at estates like Mead Park Industrial Estate, close to Gilston?
Yes. We cover Gilston and the area around it, including industrial estates, business parks and retail parks such as Mead Park Industrial Estate. Photos and a short description are enough for a first look.
Will you take on a block within reach of Harlow Town station?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Photos of each elevation help us quote accurately.
Is Gilston in your area?
Yes. Gilston falls within our area, and the simplest way to start is to give us a call on 01277 525 020 or send details through our quote form.
Does the weather affect the work?
For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
What guarantee do you give on resealing?
A 12-month guarantee covers our work. It applies to our workmanship rather than damage or problems with the frames.
Can you send RAMS and CSCS details before starting?
Our credentials include CHAS, Constructionline and public liability insurance. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
How do you handle work on occupied blocks?
Residents and tenants carry on as normal. If any flats or units need access, we’ll tell you in advance so you can arrange it with occupiers.
Looking after buildings in and around Gilston
Central London is about 22 miles from Gilston. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres. Rainfall across the South East, Gilston 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.
Churches, halls and community buildings such as Parish Church of St Mary are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time. If your remit includes a building such as St Alban's Catholic Academy, frame and door mastic can be programmed for the holidays.
Gilston is about 2 miles north-west of Harlow, in Hertfordshire. We send applicators to Gilston for mastic joints, handled exactly as we handle every other area. Gilston is one of 371 places we cover in Hertfordshire for mastic joints. Our London page has more on work in that area.
We take on mastic joints across the CM20 postcode area, for business premises of every kind. If your site is on Pye Corner and Eastwick Road or close by, we can quote for mastic joints. We also cover Eastwick (1 mile south-west), Little Parndon (1 mile south-west), Great Parndon (2 miles south), Staple Tye (3 miles south) and Roydon (3 miles south-west) for mastic joints. Bigger towns within reach include Stevenage (15 miles north-west), Bishop's Stortford (6 miles north-east), Welwyn Garden City (13 miles west), Hoddesdon (6 miles south-west), Cheshunt (8 miles south-west) and Hatfield (14 miles west).
What’s near Gilston
Locally, jobs take us to sites close to Burnt Mill Academy, The Plume Of Feathers pub and Harlow Marsh. Gilston’s nearest station is Harlow Town station, roughly 0.6 miles south. Other landmarks nearby include Harlow Mill (1.2 miles east) and Princess Alexandra Hospital (1.4 miles south-west). Open spaces near Gilston include Hunsdon Mead.
After the work
To get the most from the new sealant:
- Have the asbestos survey to hand for older buildings
- Log resealing dates block by block
- Look at the sunniest and most exposed elevations first
- Check sealant joints during planned building inspections
Add mastic joints to your cyclical inspections. Watch for splits, open gaps, hard or chalky surfaces and mastic pulling away and record where they are.
Planned resealing is easier to budget than emergency repairs. A programme can start with the worst buildings so spending is spread.
Different surfaces, different methods
Commercial and mixed-use buildings
Tenants in commercial buildings need to keep trading so the work is phased.
Tenement and older buildings
Traditional buildings have joints that need a careful approach. We look at the substrate before choosing a sealant.
When to call us in Gilston
Communal entrances and corridors see a lot of wear, and low-level joints get damaged. Regular cleaning wears them further.
Common reasons buildings call us in:
- A mix of products and colours from past repairs
- Draughts at frames across a block
- Damaged joints in communal entrances and corridors
- No planned programme for sealant
Blocks of flats and mixed-use buildings often cluster around stations such as Harlow Town station, 0.6 miles south of Gilston, and their window and balcony mastic tends to age at the same rate across a building.
What your quote should include
- Whether old or failed sealant will be cut out, not overlaid
- Their approach to joint depth and backing
- Their public liability cover
- Will RAMS and insurance details be available?