Mastic sealing for building owners and managing agents in Wallington, Hertfordshire
We carry out mastic sealing for building owners, managing agents and housing associations in Wallington and the surrounding area. Send photographs or drawings for a fixed quote.
- Worn sealant at communal door frames
- Repeated reactive repairs to the same buildings
- Old repairs sealed over failed mastic
Mastic sealing for Wallington sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Mastic sealing in Wallington
Before work starts, most agents and landlords want the documents in order. For documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are a Constructionline member and CHAS accredited, and we carry public liability insurance. If you have cracked, hardened mastic round windows on a block and patchy repairs in mismatched sealant, we can put it right. Looking for mastic applicators who cover Wallington? We’ve been sealing commercial buildings since 2005.
Around smaller places like Wallington, older walls fitted with newer windows are a familiar sight. Perimeter mastic there has to grip an uneven face and suit the building’s character.
We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Place
- Wallington (SG7)
- Wider area
- Hertfordshire
- Cover
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Looking after the joints
Keep the joints in good shape with a few simple steps:
- Keep a record of when each building was resealed
- Include mastic in your cyclical inspections
- Keep bins and bikes away from communal door frames
- Plan resealing building by building rather than complaint by complaint
Protect entrance and corridor joints from knocks where possible. Damage at low level is the most common reason communal joints fail early.
The longer failed joints are left, the more likely the substrate edges break up. Then the edges may need repairing first.
FAQs: Wallington
Is Wallington off your patch?
No. Places such as Wallington are covered as much as the big towns. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.
Will you take on a block within reach of Ashwell & Morden station?
Yes, we work for agents, landlords and housing associations with blocks of every size. Send the address, photographs of the elevations and your access arrangements, and we will give a fixed quote.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.
Is mastic sealing guaranteed?
Every building we reseal has a 12-month guarantee. It applies to our workmanship rather than damage or problems with the frames.
Will residents or tenants be disturbed?
Residents and tenants carry on as normal. We flag any areas that need internal access well before the dates so you can arrange it with occupiers.
Will you just go over the old sealant?
No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
How long does a job like this take?
That varies with the scale of the job, but the work normally takes a few days for most blocks, with larger programmes scheduled building by building. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.
Leave it or put it right?
Adding sealant to cyclical maintenance is an easy win. Waiting until leaks appear means working under pressure with less control over timing. Older rural buildings around Wallington move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.
Why us?
- A Constructionline member, so easy to vet
- One contact handling all your sites
- CHAS accredited
- Over 20 years of commercial sealing
Take a look at our cost guide and how we’re accredited.
What affects the price in Wallington
These are the things that shape the price:
- Induction, permit and paperwork requirements
- Specialist products, such as fire-rated or hygienic sealants
- Phasing around occupants
- Travel to remote or island sites
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
Details that help us quote
Good information means a firmer quote. When you get in touch, include:
- Any dates the work must fit around
- The postcode of the building
- The asbestos register, for older buildings
- The product your specification calls for
To get a fixed quote, give us a call on 01277 525 020 or email drawings and photos with the site address and an outline of the work. Our quote form is another easy route.
Nearby places to Wallington
Also in Wallington
Doing it in-house
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
Our process
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. Smaller jobs around Wallington can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.
- We inspect the joints, building by building, and record what has failed and why.
- A fixed quote follows, split by block or building if that suits you.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- We remove the old mastic completely and clean the joint faces back.
- 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.
Before we start on site
- Send asbestos survey details if the building is pre-2000
- Clear stock, furniture or equipment away from the joints
- Point out parking and an unloading spot
Ask for a quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
Advice
What we can’t put right
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Glazing that needs replacing
- Failed window or door frames, which need a window contractor
- Substrate edges that need repairing first
If you’re not sure, just phone 01277 525 020 or email us and we’ll give you a straight answer.
Where we work in Wallington
- External wall and movement joints
- Shopfronts below residential blocks
- Balcony and threshold joints
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Communal entrances and stairwells
Frames, entrances and external joints in Wallington
Wallington sits in one of the drier corners of the country, the South East. Even so, frame mastic only goes on in dry, workable conditions, and elevations facing the sun and the prevailing weather are usually where frame mastic ages first. Central London is about 34 miles from Wallington. 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.
Historic properties like Hinxworth Place (to the north-west of Wallington) show the age of some local stock, where frame mastic must suit soft brick or stone. Churches, halls and community buildings such as 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. For agents with blocks near Ashwell & Morden station, 2.9 miles north of Wallington, a block-wide mastic programme deals with frames, balconies and entrances in one go.
Wallington is about 5 miles east of Letchworth, in Hertfordshire. We send applicators to Wallington for mastic joints. Wallington is one of 371 places in Hertfordshire on our list for mastic joints. We also cover London, some 34 miles away.
Anyone looking for mastic sealing in SG7 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on The Street and Kit's Lane and the roads nearby. If your building is just outside Wallington, we cover Clothall (2 miles south-west), Baldock (3 miles west), Weston (3 miles south-west), Walkern (5 miles south) and St Nicholas (5 miles south-west). Nearby towns on our patch include Stevenage (6 miles south-west), Bishop's Stortford (14 miles south-east), Welwyn Garden City (14 miles south), Harpenden (15 miles south-west), Hitchin (7 miles west) and Hertford (13 miles south).
Landmarks near Wallington
Wallington’s nearest station is Ashwell & Morden station, roughly 2.9 miles north of the centre. A little further out are Ashwell Village Museum (3.9 miles north-west) and Fairfield Hospital (5.6 miles west). Not far away are Hawkins Wood.