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Engineers who think
like designers.

AEROCLIMA is a climate atelier: forty-six people who believe comfort is an architectural material — as considered as light, as quiet as stone.

Studio meeting
Craftsmanship on site
2007Founded in
the harbour
Our position

We don't sell boxes.
We engineer comfort.

Most firms in this trade start with the equipment and work backwards. We start with the room: how it's used, how the light falls, what the acoustics demand, how the air should move when someone is sleeping, presenting, cooking or recovering.

Only then do we choose hardware — and often, that means choosing less of it. A correctly modelled system is smaller, quieter and cheaper to run than the one a competitor would quote. That discipline is the whole business.

  • ✓Modelled, never guessed. Every proposal begins with a Manual-J heat-gain calculation.
  • ✓Owned end to end. Survey, design, install, commission and care — one firm, one standard.
  • ✓Quiet as a specification. We publish dBA targets and verify them at handover with our own meters.
0In practice
0Specialists
0Systems delivered
0Cities served
How we work

Four principles,
non-negotiable since day one.

◈

Measure twice

If it isn't modelled, we don't quote it. Precision at the desk prevents waste on site.

✦

Say the hard thing

If your building doesn't need the system you asked for, we'll tell you — and cost the alternative.

❖

Own the outcome

No subcontractors. The engineer who quoted it is the engineer who signs it off.

⬡

Leave it better

Cleaner than we arrived, documented, and scheduled for its next service before we go.

Trajectory

From one van to
a studio.

Eighteen years, no outside capital, no franchise. Growth has come the slow way — referral by referral.

2007

A single van

Founder Nadia Kessler leaves a national contractor to do residential work properly. One technician, one postcode.

2011

Design brought in-house

First CAD designer hired. Load calculations become standard on every job — the differentiator that still defines us.

2015

Commercial division opens

Northline HQ becomes the first full VRF retrofit, delivered out of hours with zero tenant complaints.

2019

The Harbour Works studio

We move into a purpose-built workshop with a training rig, a duct laboratory and room for forty.

2023

Net-zero operations

Our own fleet electrified, workshop on renewables, and a published carbon plan for every project we take.

2026

46 specialists, 14 cities

Still independent. Still only our own crews. Still answering the phone ourselves.

Engineer at work in the studio
Certifications
NATE Core & Specialty EPA Section 608 LEED AP O+M ASHRAE Member Mitsubishi Diamond Daikin Elite OSHA 30 BPI Envelope

Every engineer re-certifies annually. We fund the exams and pay for the study time — competence isn't optional here.

Leadership

The people who'll
actually answer.

No account managers, no call-centre scripts. These are the engineers who design, deliver and stand behind the work.

Nadia Kessler

Nadia Kessler

Founder · Principal Engineer

NATE Master, 22 years in the trade. Still runs the Saturday emergency rota herself.

Julian Reyes

Julian Reyes

Design Director

Ex-architect turned HVAC designer. Owns every airflow model that leaves the studio.

Amara Boateng

Amara Boateng

Head of Commercial

Delivers out-of-hours retrofits across offices, hotels and laboratories.

Tomas Halvorsen

Tomas Halvorsen

Service Manager

Runs the 24/7 desk and the 34-point maintenance programme across 900+ systems.

Recognition

Awards we didn't
expect to want.

We've never entered a competition we couldn't defend with data. These are the ones that mattered — judged on measured outcomes, not mood boards.

2025HVAC Contractor of the YearNational Trades Council
2024Energy Efficiency Grand Prix−44% measured reduction, Villa Sereno
2024Interior Comfort Award22 dBA residential install of the year
2023Commercial Retrofit PrizeZero-downtime VRF, Northline HQ
2022Customer Service Excellence4.95★ across 2,180 verified reviews
Reviewing performance data
Reviewed this year
4.95
★★★★★
2,180 verified reviews
Google · Trustpilot · Houzz
Would recommend to a friend99%
Fixed on first visit98.6%
On-time arrival97.4%
Clients still with us after 5 yrs91%
Studio workspace
Work with us

Come see the
workshop.

We host clients at the Harbour Works studio every Thursday — training rig, duct lab, coffee, and an honest conversation about your building.

Emergency desk +1 (800) 555-0199

Certified engineers dispatched in under 60 seconds of your call — 24/7/365.

Call now
📞24/7 Emergency+1 (800) 555-0199