Air Water Systems Design Engineering — Andover, MA

The same engineer the large firms billed you for. Without the org chart.

HVAC, plumbing, and fire protection design — PE-stamped, insured to $2M, four decades of built work. Large-firm engineering at an independent's cost structure.

RG-1 (TYP FOR 9) 14"ø UP THRU ROOF W/ GOOSENECK RTU — SEE SCHEDULE 30x16 — 3,000 CFM SUPPLY 18x14 18x12 20"ø SCALE: 1/4" = 1'-0" SHEET H-1.0 · HVAC PLAN (REPRESENTATIVE)
Drawn byMSD
Checked byMSD — same desk
In practiceSince 1980
Liability coverage$2M
CredentialLicensed PE
SHEET 01Scope of services

Three disciplines. One stamp.

Prime consultant or sub-consultant on private and public work — new construction, renovation, evaluations, value engineering, commissioning, feasibility studies, and construction administration.

H-1HVAC

HVAC Design

Load calculations, equipment selection, duct and hydronic layout, controls, energy code compliance.

  • Specialty ventilation — ice rinks, kitchens, laundries
  • Renovations and tenant fit-outs
  • Balanced to within 10% of design criteria — and tested
P-1Plumbing

Plumbing Design

Domestic water, sanitary, storm, and gas — with built experience in water conservation design.

  • Rainwater harvesting and wastewater recycling
  • Medical and dental specialty systems
  • Commercial kitchen and laundry systems
FP-1Fire Prot.

Fire Protection

Sprinkler and suppression systems to NFPA standards — designed to pass review the first time.

  • Offices, assembly, garages, religious, government buildings
  • Coordinated with HVAC and plumbing from day one
G-1General

Advisory & Construction Phase

Senior judgment before, during, and after design.

  • Evaluations and feasibility studies
  • Value engineering and commissioning
  • Construction administration and turnkey delivery
SHEET 02Selected projects

Built work. Systems still running.

Diversified Automotive truck garage
LAYER: HVAC — SPENCER, MA

Diversified Automotive

Exhaust extraction that lets trucks stay running indoors — faster loading, clean air.

Cass Rink ice arena
LAYER: HVAC — ROXBURY, MA

Cass Rink

Ice-quality humidity control and spectator comfort in one of HVAC's hardest building types.

St. Francis Church
LAYER: HVAC+PLB+FP — DRACUT, MA

St. Francis Church

All three disciplines, one engineer — full mechanical scope for a large-volume sanctuary.

BiCon dentist offices
LAYER: HVAC+PLB — BOSTON, MA

BiCon Dentist Offices

Clinical fit-out with the coordinated HVAC and specialty plumbing dental equipment demands.

Houghton's Pond Recreation Center
LAYER: HVAC+PLB — MILTON, MA

Houghton's Pond Rec Center

Central facility for a 7,000-acre public recreation area — built for high seasonal traffic.

Framingham Civic Center
LAYER: CIVIC — FRAMINGHAM, MA

Framingham Civic Center

Mechanical design for a civic landmark serving the town of Framingham.

+ Saint John Evangelist Church · Veterans Affairs Building · 2 Ovens Restaurant — full drawing list on request

SHEET 03Heritage

The same rigor that renovated parliaments.

1990s renovation work on landmark European buildings, performed as design engineer — the systems designed then are still in service today.

European Parliament
EUROPEAN PARLIAMENT — HVAC RENOVATION, EARLY 1990s
Romanian Parliament
ROMANIAN PARLIAMENT — HVAC / PLB / FP RENOVATIONS
Belgian Rail
BELGIAN RAIL — HVAC RENOVATION, SYSTEMS STILL IN PLACE
SHEET 04The engineer

Marcel Dumitrescu, PE

Marcel Dumitrescu, PE, founder of AWSDE DETAIL 1/H4 · M. DUMITRESCU, PE

Marcel spent his career inside large engineering firms, designing mechanical systems for buildings ranging from dentist offices to the European Parliament. He founded AWSDE to offer the same engineering without the large-firm cost structure.

Every AWSDE drawing set says the same thing in the title block: Drawn by: MSD. Checked by: MSD. The engineer who runs the calculations is the engineer who draws the systems, stamps the sheets, and answers the phone.

LicenseProfessional Engineer
Insurance$2M professional liability
PracticeEurope + US, since 1980
RolesPrime consultant · Sub-consultant · Turnkey design
SHEET 05Why independent

You're not paying for the org chart.

The large firm

  • Brand premium built into every invoice
  • Junior staff learning on your project
  • Handoffs between departments
  • Business development between you and answers

AWSDE

  • Same PE credentials, same insurance coverage
  • The engineer who stamps did the calculations
  • One person accountable, first sketch to final inspection
  • Direct line to the engineer — no layers
SHEET 06Contact

Start with a conversation.

Describe your project. You'll hear back from the engineer directly — typically within one business day.

EMAIL marcelds@awsde.com

OFFICE Andover, MA