We Value Our Clients

Testimonials & Reviews

“SGS has been waterproofing our electrical ducts and vaults structures for over 20 years. SGS has confined space trained personnel to meet Pepco’s strict safety standards for entering and working in our vaults. They have always provided quick response times to all our customers and have always provided emergency crews, days, nights and weekends. Pepco looks forward to working with SGS in the future in solving all our waterproofing needs.”

George Blakeney – Lead Cable Splicer
Pepco Holdings, Inc

“Superior Grouting Services, Inc. (SGS) has provided outstanding waterproofing services at numerous buildings throughout the campus for over 25 years. They always seem to have the ability to diagnose and solve the problem at hand. They truly are professionals from their courteous office staff, the quick response from their estimators, and their knowledgeable work crews.”

Robert Kuhn – Assistant Director, Facilities
John’s Hopkins Hospital

“Superior Grouting is always included on our pre-approved bid list for any grouting project. They have developed creative solutions on several projects we have worked on together and their knowledge of grouting and below grade leak remediation is invaluable. We would highly recommend them to anyone. On a recent below grade grouting project, another contractor was having great difficulty stopping leakage through several foundation walls. Superior Grouting was retained by the owner on our recommendation and within 2 days had stopped all the major foundation wall leaks on the project.”

Matthew Nachman, P.E.
Construction Insight

“Finding and remediating water infiltration issues is often challenging and time consuming work. That is why here at the University of Maryland we rely on quality contractors like SGS to help us find and solve our waterproofing problems. We have an old infrastructure, and the knowledge and experience that SGS brings to the table is why we continue to use them year after year.”

Sam Cooke
University of Maryland

“I wish to tell you how impressed Manhattan Construction is with Superior Grouting Services. Our client at Georgetown University has trusted us with a major historical restoration of multiple buildings with an aggressive schedule. The project is to convert 150 year old buildings into new student dorms. During the pricing and scoping efforts of the project we were concerned of subcontractor choice for the Masonry and Stone Restoration. Our reputation to satisfy our client’s expectations is critical on all our projects. Superior Grouting Services has proved to us that we made the right subcontractor choice. Your company employees have been very professional and responsive to the challenges of this project. I would certainly look at future opportunities with Superior Grouting Services as the need arises.”

Marcelo Labarca – Senior Estimator
Manhattan Construction

“We are a Commercial Waterproofing contractor in the Baltimore, Virginia and District of Columbia region. It is very important that when we finish and turn over a job to our customers we guarantee a water tight envelope. There are occasions when a leak does develop and we need to inject a crack in the wall or a floor to wall condition. When this happens we always call Superior Grouting, they have been very responsive when we call in getting out to fix water leaks and in return I am able to keep my customers happy. Their crews are very user friendly which makes my life easier and I don’t have to watch over their work. I highly recommend Superior Grouting to anyone that need to fix a water leak that they can’t get to from the positive side of the wall.”

Tim Brown – President
Baltimore Waterproofing, Inc.

“We have used SGS for a few years now and they have always done what they say they will do when they say they will do it and for the price they quoted. In my opinion, it is hard to beat that! We use them to seal our floor sinks or floor drains from underneath when the penetrations’ waterproofing fails.”

J.J. Sabins – Manager of Like-New Facilities
Farmers Restaurant Group

“I hired Superior Grouting to waterproof a large leak, in a basement. The source of the leak was immediately identified, and their response time to waterproof, was quick. After long days of hard work, the leak was waterproofed and resolved. Superior Grouting followed up with me the next time it rained, to ensure the leak had ceased. I find their work to be professional, quality, and highly effective!”

Rita Parasidis – Property Manager
Douglas Development Corporation

SGS Client List:

20 20 Companies
A&R Waterproofing
Abc Associated Builders And Contractors, Inc.
Ad Solutions
Agc Of America
Ahern Rentals
Almo Construction, Inc
America Exteriors, Inc
American Blast Masters
American Contracting & Environmental Services.Lnc.
American Logiball Inc.
Ames Research Laboratories, Inc
Angler Environmental
Anne Arundel County
Aquaries Supply
Archer Western Contractors. Ltd
Architecture Engineering Interior Design Research
Asbury Methodist Village
Associa Community Management Corporation
Associated Builders Inc.
Asylum Designs
Atlas Foundations Of Washington, Llc
Avanti International
B. Frank Joy
Balfour Beatty
Balfour Beatty Construction
Ballston Park Condominium
Baltimore Gas And Electric Company
Base Engineering Inc.
Basf Corporation
Beltsville Construction Supply, Inc
Beltway Transportation
Ben Dyer Associates. Inc.
Bennett Group
Berkel & Company Contractors, Inc.
Berkley Mid-Atlantic Group
Berkley Mid-Atlantic Group, Llc
Bernstein Management Corporation
Biscayne Contractors
Blades Of Green
Borger Properties
Bozzuto Management Company
Brendel Restoration
Brothers Paving & Concrete Corporation
Brundage-Bone & Blanchet, L.L.C.
Brundage-Bone & Blanchet, Llc
Building & Restoration Technologies, Inc.
Busy Service
C.A Lindman Incorporated
Cafritz Interests
Caftritz Interests
Capital Rentals
Capitol Finishes Inc.
Capitol Paper Co.
Carlisle Coatings & Waterproofing
Carlos Rosario International
Carr Real Estate Services
Case Design/Remodeling Inc.
Cbg Building Company Llc
Cbre. Inc.
Ccl Usa
Cenennial Contractors Cnterprises Inc.
Centennial Contractors Cnterprises, Inc.
Centennial Contractors Enterprises, Inc.
Centex Construction Company
Century Engineering
Certapro Painters
Chaney Enterprises
Chapel Valley Landscape
Charles Tini & Associates
Chemtec Intl Inc
Chesapeake Geosciences. Inc.
Chpp System
Chutes International
Cianbro Corporation
City Of Baltimore
Clark Construction
Clark Construction Group, Llc
Clark/Smoot/Russell, A Joint Venture
Clune Construction Company
Cmms Group, Inc.
Coakley & Williams Construction, Inc.
Coastal Resources Inc.
Concrete Protection & Restoration
Configuration Incorporated
Consolidated Coatings Inc
Consolidated Electrical Distributors, Inc.
Consolidated Waterproofing Contractors Inc.
Consolidated Waterproofing Services Llc
Constellation Group Llc
Construction Insight, Inc
Contracting Corporation
Contracting Specialists Incorporated
Costco Optical
Council Industries, Inc.
Cricket Tseal Associates Inc.
Crickett Seal Associates, Inc.
Culbertson Company
Cushman & Wakefield
Cynthia Nunn & Associates, Inc.
D. W Kozera. Inc.
D&A Dunlevy Landscapers, Inc.
David M. Foxwell Inc.
Davidson & Associates Inc
Davis Construction
Days Hotel
Dc Water And Sewer Authority
Decorative Concrete Solutions
Diamond Core Drilling And Sawing Company
Digital Copier Associates
District Of Columbia And Water And Sewer Authority
Division Iii Associates
Donohoe Construction Company
Donohoe Real Estate Services
Donohue Development Company
Douglas Development Corporation
DPR Construction
Drill Construction
Drillers Service, Inc
Dsi, Inc
Dyna Corporation
Early, Cassidy & Schilling, Inc.
Eastern Testing Amd Inspection Corp.
Eastern Waterproofing & Restoration Co, Inc.
Ecs Mid-Atlantic, Llc
Edward Kraemer & Sons, Inc.
Emcor Government Services
Emh Environmental, Inc.
Emseal Joint Systems Ltd
Encore Development Corporation
Engineering Consulting Services, Ltd.
Epic Concrete
Erie Metal Specialties
Ev Air Tight
Ev-Air-Tight, Shoemaker, Inc.
Facchina Construction Company, Inc.
Facility Engineering Associates, P.C.
Facility Engineering Associates. P.C.
Fairfax County Public Schools
Farrell Expoxy Urethane Coatings & Caulking
Fasteners Inc.
Fichtner Services Central, Inc



Fifth Management And Consulting, Inc.
Forrester Construction
Foulger-Pratt Contracting, Llc
Foulger-Pratt Management, Inc.
Four Points Supply
Foxfire International Llc
Frederick Brick Works Inc.
Free State Landscape Management Inc.
G.A. Mechanical Inc
G.E. Frisco Company, Inc.
Gale Associates, Inc.
Gallery @ White Flint
Gdm Construction
Geiger Pump & Equipment Company
George Washington University
Geoscience Services
Geotech Engineers, Inc.
Geotechnical Consulting & Testing, Inc.
Gilbane Building Company
Giles Engineering Associates. Inc.
Glenn’S Supply & Equipment Inc
Golden Living Center
Gordon Contnactors Inc.
Gordon Contractors Inc.
Greenwald Supply Direct, Llc
Grunley Construction
Gsa Public Building Service
Gunite Supply & Equipment
H.J. Greer & Sons Drilling Co., Inc
Hamel Builders
Hammer & Steel. Inc.
Harbor View Contractors
Harris Rebar
Harvey Cleary
Hays Companies
Hayward Baker Inc.
Hearn Burkley
Heffron Company. Inc.
Hensel Phelps
Hess Construction
Highway And Safety Services, Inc.
Hill International. Inc.
Hilti North America
Historic Restoration. Inc.
Hjr Stmctural Engineers, Llc
Hoffmann Architects. Inc.
Holiday Inn On The Hill
House Buyers Of America
Howard County
Hsu Builders
Industrial Power Solutions, Llc
Industrial Rubber, Inc.
Industrial Supply Corporation
Inforcer Foundation Systems
Investment Properties Inc.
J W Marriot
J. Roberts, Inc
J.E. Richards Incorporated
J.R.F. Limited
J.W. Graner Inc.
Jacksonville Contracting Company, Inc.
James G. Davis Construction Corporation
James J. Madden Inc.
James Myers Company, Inc.
Jamson Laboratories. Inc
Je Richards
Jet Blast
Johns Hopkins
Jones Lang Lasalle
Joseph B. Fay Company
Juniper Construction
Jw Marriott
Kadcon Corporation
Kaiser Permanente
Kbe Building Corporation
Kci Technologies Inc.
Keating Building Corporation
Kem, Inc.
Kendall Landscape Services, Inc.
Kenseal Construction Products Corp.
Keypoint Government Solutions
Keystone Plus Construction
Kimpton Hotel & Restaurant Group, Llc
Knights Inn
Kokosin Fru-Con
Kondner Engineering And Technical Services
Ksi Management
L & L Enterprises, Inc
L.F. Jennings
Labor Ready
Ladders & Things
Lafarge Concrete
Lafarge North America Inc.
Landtech Associates Inc.
Lane Construction
Lasa, Monroig & Veve, Llp
Lawrence Abell & Associates Ltd.
Lend Lease
Liberty National Life Insurance Company
Lighthouse Industries
Lincoln Property Company
Lithko Contracting, LLC.
Louis Dreyfus Property Group
Lr Refrigeration Llc
M.S. Lumbee Contractors, Llc
M&N Professional Concrete Contractors, Inc.
Manganaro Midatlantic, Llc
Manhattan Construction Company
Martins Construction Corp.
Maryland Industrial Trucks Inc.
Master Locators
Mccullough Consiruction L.L.C.
Mcgraw Hill Construction
Mclean Gardens Condominiums
Medstar Georgetown University Hospital
Mennonite Home Communities
Merrill Lynch
Metropolitan Washington Airports Authority
Meyers Construction Co., Inc.
Mgm Resorts
Mhayes And Associates, Llc
Michael J. Walkley, P.A. Consulting Engineers
Midwest Mole
Miles & Stockbridge P.C.
Millenium Marketing Solutions
Millersville Welding
Monarc Construction
Montgomery County
Mvp Irrigation
Nardi Construction, Inc.
National Capital Industries
Network Inc.
Northern Virginia Mental Health Institute
Olson Engineering, Inc
Otis Elevator Company
P.W. Stilwell Plumbing & Heating, Inc.
Paradigm Contractors. Llc
Patent Construction Systems
Piedmont Government Services, Llc
Pipe Restoration, Inc.
Plaza Construction
Plumbing & Heating, Inc.
Plumbing Services, Inc.
Potomac Environmental Inc
Potomac Rubber Company Inc.
Preservation & Protection Systems. Inc
Prince George’S County
Professional Building Maintenance Inc.



Professional Design Group, Inc.
R.L. Burdentte, Co’S
R&C Construction
Raine & Son, Llc
Rdp Management, Inc
Reading Equipmen T& Distribution, Llc
Reese Lower Patrick And Scott Architects
Reliable Contracting
Resiplast Us
Rockville Fuel & Feed Co., Inc.
Rodgers Brothers Service, Inc.
Rotondo Environmental Solutions Llc
Rummel, Klepper & Kahl, Llp
Sahouri Insurance & Financial
Saliba Action Strategies
San Business Consultants Llp
Sandy Spring Bank
Sansbury Electric
Saxon Collaborative Construction
Scaffolding Solutions
Scanlan Fleet Service, Inc.
Schnabei Engineering
Schuster Concrete
Sears Holdings
Senate Of Maryland
Sentry Management Inc.
Shaffer, Wilson, Sarver & Gray
Shapiro & Duncan, Inc.
Signature Flight Support
Sika Corporation
Simpson Of Maryland Inc
Sinai Hospital
Singleton Electric Company, Inc.
Skyline Contracting Company
Smithgroup Inc.
Smithsonian Institution
Smoot Construction
Somero Matson Group Llc
Southern Management Corporation
Specchem Llc
Spectrum Building Envelope Consulting, Llc
Stambaugh’S Inc.
Stanton View Developement
State Highway Administration
State Of Maryland
Stillwater Construction Group
Storm Water Maintenance
Strohecker, Inc.
Structura Inc.
Structural Preservation Systems
Subterranean Construction Co., Inc.
Sumner Court Condominiums
Sunbelt Rentals
Sunrise Pools & Spas
Sunrise Senior Living
Superior Concrete Materials, Inc
Superior Grouting Services
T.A. Mcdaniel Restorations Llc
T&S Tree Removal
Tadjer-Cohen-Edelson Associates, Inc.
Tcg Management Corporation
Television Inspection Equipment Inc
Tennessee Valley Authority
The Arvid Group
The Blue Book Building & Construction Network
The Clark Construction Group, Inc.
The Colonial Williamsburg Foundation
The Euclid Chemical Company
The Gallery
The Jaffe Group
The Jbg Companies
The Lane Construction Corporation
The Lucian Company
The Market Common
The Matthews Group, Inc.
The Michael Companies. Inc.
The Mullan Contracting Company
The National Conferenc Center
The New Barbet Corporation
The Peterson Companies
The Robert B. Balter Company
The Sherwin-Wiliiams Company
The Sterling
The Warrington Condominiums
The Whiting-Turner Contracting Company
The Winchester-Underwood
Thyssenkrupp Elevator
Tidewater Caulking & Waterproofing
Tishman Construction Corporation Of D.C.
Titan America
Titan Concrete
Titan Construction
Tompkins Builders, Inc.
Toney Drilling Supplies, Inc
Top Gun
Torti Gallas And Partners. Chk, Inc
Traffic Engineering Services
Trammell Crow Residential
Tremco Incorporated
Trench And Safety
Tri-Phase Services Inc
Tuckman-Barbee Construction Co Inc.
Turner Construction Company
Tvs Concrete, Llc
U.S. Deparment Of Homeland Security
U.S. House Of Representatives
Uhar & Co Incorporated
Ulliman Schutte Construction, Llc
Unique Machining Mfg. Inc
United Building Envelope Renovation
United Rentals
University Of Maryland
Uniwest Commercial Realty
Urs Corporation
Us Property Development Corporation
Used Office Furniture
Usi Dc Metro
Vector Data Systems
Velocity Sports Equipment
Vexcon Chemicals, Inc.
Video Pipe Services Inc.
Vista Management
W.B. Maske Sheet Metal Works, Inc.
W.L. Gary Company, Inc.
Walter Dyer
Warfel Construction Company
Washingotn Adventist Hospital
Washington Air Compressor Rental Co
Washington Air Compressor Rental Co.
Washington Aqueduct U.S. Army Corps Of Engineers
Washington Metropolitan Area Transit Authority
Washington Property Company
Waste Management
Waterproofing Consulting Company
Wc Homes Llc.
Wcs Construction
Wellesley Inn & Suites
Willis Of Maryland Inc
Wiss, Janney, Elstner Associates, Inc.
Wooddury Heights
Woodfin Suite Hotels
Woods Peacock
Zalco Realty Inc.
Zenmar Power Tool And Hoist Systems