We build websites that
actually perform.

QuantWeb builds beautiful, high-performance websites and drives the organic traffic to fill them — for businesses across South Wales and the UK.

No monthly retainersPay per projectFree consultation

Let's build something great

We reply within one business day

No monthly retainers
Pay per job, no lock-in
South Wales based
Serving the whole UK
98+ Lighthouse score
On every single build

What we do

Design. Build. Rank.

Two disciplines, one studio — we build your site and make sure the world finds it.

01

Web Design & Development

Pixel-perfect, performance-first websites built from scratch. Fast-loading, accessible, and crafted to convert. Every site ships with 98+ Lighthouse scores as standard.

Start a project
02

Search Engine Optimisation

Technical SEO, content strategy, and link building engineered to land you on page one. We target South Wales local search and UK-wide organic traffic.

Grow your traffic
03

Performance Audits

Deep-dive audits on Core Web Vitals, crawlability, and conversion paths — with a clear, prioritised fix-it roadmap you can act on immediately.

Audit my site
04

Updates & Changes

Need something changed after launch? Just come back to us. We quote per job — no retainers, no monthly fees. Pay only for what you need, when you need it.

Get a quote

What we build

Work that speaks for itself.

Hover to preview. Every site we build is fast, beautiful, and built to rank.

APEX
Fitness & Wellness

Apex Fitness

High-energy dark design for a premium South Wales gym. Membership-first conversion flow.

Train Like You Mean It.
2,400+
Members
48
Classes/week
£29
Per month
5★
Google rating
EMBER
Hospitality & Dining

Ember Restaurant

Dark luxury editorial design for a Cardiff fine dining restaurant. Reservation-focused.

Where fire meets flavour.

Seasonal tasting menus · Open flame kitchen

Reserve a table
Flame-seared scallops
£16
28-day aged ribeye
£42
Burnt honey tart
£11
HAVEN
Luxury Property

Haven Property

Light luxury estate agency site. Warm stone palette, premium listings, valuation-focused.

Find your perfect home.

Cardiff Bay
Penarth
Cowbridge
Pontcanna
BLADE
Grooming & Barbershop

Blade & Co.

Editorial cream and black luxury barber site. Serif typography, heritage feel, online booking.

The art of the perfect cut.

The Classic Cut£28
Cut & Beard Trim£38
Hot Towel Shave£32
The Full Works£55
“A great haircut isn't a luxury. It's a statement.”
YOUR PROJECT

Your business

Your site could be next.

Tell us what you need — we'll build something that makes your competitors jealous.

Start a project

Why QuantWeb

Rank higher.
Stay there.

Most agencies do design or SEO. We do both — built to work together from day one.

01
Built to rank from day one
Schema markup, Core Web Vitals, and keyword-targeted content are baked into every build — not bolted on later.
02
Local expertise, UK reach
We know South Wales search landscapes — Cardiff, Swansea, Newport. And we scale nationally when you're ready.
03
Transparent reporting
Live dashboard access, monthly calls, and plain-English reports. You always know exactly what's happening.
04
E-E-A-T from the ground up
Google's 2026 trust signals — Experience, Expertise, Authority, Trust — built into your content strategy from day one.
Live keyword rankings
1
web design south wales
+4 ↑
2
seo agency wales
+7 ↑
3
web studio cardiff
+3 ↑
4
website design swansea
+9 ↑
5
local seo south wales
+11 ↑

Where we work

Based in South Wales.
Built for the UK.

We're a South Wales web studio working with businesses across Cardiff, Swansea, Newport, Bridgend, and beyond. All projects run remotely with clear, consistent communication.

CardiffSwanseaNewportBridgendMerthyr TydfilBarryNeathAll UK

FAQ

Common questions

Everything you need to know before working with us.

Get started

Ready to build
something great?

Drop us your email and we'll be in touch within one business day.