All Services

New Build & Construction across the North West & UK.

Sealant finishing packages for new-build and construction sites across the North West and nationwide across the UK. We work to drawings and schedules, including Everton Stadium, Aintree Racecourse, Marks & Spencer and Mooreside Place.

  • Clean, Precision Trade Workmanship
  • 5.0★ on Google (54 Verified Reviews)
  • Old Grout & Sealant Always Removed First
  • 100% In-House Trained Specialists
New-build sealant finishing at Mooreside Place apartmentsNew Build
New Build detail 1Precision Finish
New Build detail 2Trade Grade
New BuildNorth West & UK Commercial
Customer Rating
01

5.0 / 5 on Google

54 reviews · Rated "Great price"

Preparation
02

Old Sealant Removed

Stripped back & cleaned first

Insurance & Safety
03

£5m & £10m Insured

Full public & employers' cover

Fair Pricing
04

Fair & Fixed Price

Quick quote by phone or message

Site Qualifications & Accreditations

Certified for domestic homes, commercial sites, powered access and high-rise rope access

CSCS - Construction Skills Certification Scheme
SSSTS - Site Supervisor Safety Training Scheme
IPAF - Powered Access (PAL Card) Certified
PASMA - Mobile Access Towers
IRATA - Industrial Rope Access Trade Association
NVQ L3 - Level 3 NVQ Diploma in Accessing Operations & Rigging

Deal directly with Liam.From first quote to finished job.

No call centres. No subcontracted strangers. From your first WhatsApp photo quote to the final tooled bead of silicone, Director Liam Harrison oversees your job personally. For specialist tile restoration, Liam works alongside family craftsmen with over 22 years on the tools—ensuring every joint is immaculate.

Liam

· Lead Mastic Specialist · 8 Years Experience

Your direct point of contact from quote to completion

22+ Years Trade Experience

· Grouting & Resealing

Trusted family & senior specialists on the tools alongside Liam

Certified & Fully Insured

· Domestic & Commercial

CSCS Gold, SSSTS, IPAF, PASMA, IRATA & NVQ L3 · £5m/£10m insured

Liam Harrison, Director and Lead Mastic Specialist at Next Level SealantsLiam · Next Level Sealants
Bathroom silicone sealing and tile regrouting by Next Level SealantsSilicone & Regrouting
Commercial mastic sealing by Next Level SealantsUK Commercial Sites

“Friendly, tidy and clearly takes a huge amount of pride in his work.”

54 Google reviews →
Interactive Silicone Colour Studio
32 Trade Shades · Tap Any Area Below

See how colour-matched silicone looks on your surfaces.

1. Tap What You Need Sealing:

Tap any area to test surfaces & colours
Completed Bath & Shower Reseal
Matt BlackPopular Match

Sealant Packages for New Builds

We provide mastic and sealant packages for new-build and construction sites, from self-build plots to larger residential and commercial developments. Work includes internal bathroom and kitchen silicone, window and door frame mastic, external façade and cladding joints, expansion and movement joints, thresholds, balconies and podiums, and snagging before handover. We work from drawings, sealant schedules and joint specifications where provided, coordinate with site managers and finishing trades, and keep photographic records. Past projects include Everton Stadium and Mooreside Place.

  • Internal and external sealant finishing
    01
  • Bathroom and kitchen silicone
    02
  • Window and door frame mastic
    03
  • External façade and cladding joints
    04
  • Expansion and movement joints
    05
  • Threshold, balcony and podium seals
    06
  • Snagging and final handover seals
    07
  • Programme coordination with site managers
    08
  • Works from drawings, schedules and specifications
    09
  • Photographic records
    10

How We Do the Job

01

Pre-start and scope review

We agree the programme, standards, joint specifications, product selection and handover requirements from drawings, schedules or a site walk before work starts.

02

First-fix and sample approval

Where required, we prepare a sample area for sign-off before the full programme begins, confirming finish and colour where relevant.

03

Programme delivery

We work through the units or façade areas in line with the site programme and other trades, carrying out quality checks as we progress.

04

Snagging and handover

We return to put right any sealant snags and provide the handover records and photographs the site needs.

Common Questions

Have another question about your job? Send a photo on WhatsApp or use our quote form and we will help straight away.

Do you work with main contractors?+

Yes. We work with developers, main contractors and site managers across the North West on new build and fit-out projects.

Can you work to site programmes?+

Yes. We understand construction programmes and coordinate our work with other trades to keep the job moving.

Do you do one-off self-build plots?+

Yes. From single self-build plots to multi-unit developments, we can scale the sealant package to the project.

What sealant work is included in a new build package?+

Typically internal silicone, window and door frame mastic, external weatherproofing, expansion joints and threshold/balcony seals. The exact scope is agreed from the drawings or site walk.

Request a Commercial Quote

Send the site address, drawings, photos and approximate dimensions and we will come back with a price and programme.

How your quote works

  1. 1Send photos2 or 3 photos of the job plus your postcode on WhatsApp
  2. 2Get a fixed priceExact all-inclusive quote agreed before you book — no callout fees
  3. 3We do the work100% strip-out, tidy finish, backed by our 5-year guarantee
Peter Ruttledge
“Great service no mess and and really professional job would definitely recommend them”
Fixed price agreed upfront5-Year Domestic Guarantee£5m & £10m insured5.0 / 5 (54 Google reviews)

Online Quote Request

Send your job details & photos

Photos welcome

Commercial enquiry

Drawings, schedules and tender documents are welcome. Email them direct to liam@nextlevelsealants.co.uk or send the details through this form. Either way it lands with Liam.

02 · What type of job is it? *
03 · How should we reply to you? *

Email is usually easiest for commercial work so drawings, schedules and tender documents stay in one thread. WhatsApp or phone are fine too.

Tap or drag to attach job photosPhotos help us give you a fast, accurate price without a site visit

By submitting this form, you agree to our Privacy Notice. Photos may be resized before sending to keep file sizes small.

Prefer email? Send drawings or documents to liam@nextlevelsealants.co.uk